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Home » Recipe Index » Desserts

Caramel Oatmeal Bars

Published: Jul 11, 2023 · Updated: Jul 11, 2023 Author: Alexandra Cook

For the full recipe including quantities and method, click the "jump to recipe" button, or scroll through and read our helpful tips along the way.

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These delicious Caramel Oatmeal Bars are likely to become your new favourite recipe. With a crisp base, a sweet, slightly chewy caramel centre, and a crumble topping, this is an easily made sweet snack that the whole family will enjoy. If you love a good, sweet treat that is quick to make, then this recipe is for you – the hardest part is waiting for them to cool down!

Stack of three Caramel Oatmeal Bars.
Jump to:
  • Why you’ll love this recipe:
  • Ingredients in this recipe:
  • How To Make Caramel Oatmeal Bars:
  • Tips for success and FAQs:
  • Variations and substitutions:
  • Serving suggestions:
  • More delicious recipes for you to try:
  • Caramel Oatmeal Bars

Why you’ll love this recipe:

Using basic household ingredients, you can quickly and easily bake a batch of these Caramel Oatmeal Bars.

It only takes about a half hour to make and bake the bars. You just need to be patient while waiting for them to cool!

You’ll love this recipe for Caramel Oatmeal Bars because:

  • They are made from ingredients that are readily available.
  • Like my Lemon Curd Cake, there is minimal effort involved as the base and the crumble topping are made from the same mixture.
  • No special equipment is required. After pressing the base into the tin and covering it with richly delicious caramel, you crumble the remaining mixture over the top and bake. Easy and delicious!
  • The whole-grain rolled oats give the bars a very pleasing texture, beautifully complemented by the chewy caramel centre and the crisp crumble topping.
  • They are a guaranteed crowd-pleaser, enjoyed by children and adults alike.
  • As they are nut-free, they are perfect for school lunch boxes.

Ingredients in this recipe:

Please see the recipe card further along in the post for exact quantities of ingredients and the full method.

Ingredients in this recipe on a pink and white marble background.

All-purpose/plain flour – this recipe has been tested with regular wheat flour and gluten-free all-purpose flour. Either will work well.

Rolled oats – old-fashioned rolled oats are best for this recipe. Use certified gluten-free if you require.

Salt – use coarse kitchen sea salt to boost the flavours.

Baking/bicarbonate of soda – acts as a raising agent. It is not the same as baking powder.

Butter – adds richness and flavour. We use unsalted butter in the caramel filling as well as the mixture for the base/topping.

Brown sugar – we use light brown sugar; it adds a slight caramel flavour.

Vanilla extract – for the best result, use vanilla, which is naturally extracted, not artificially flavoured.

Sweetened condensed milk – we combine this with unsalted butter and light brown sugar to make a richly delicious caramel filling.

How To Make Caramel Oatmeal Bars:

Please see the recipe card further along in the post for exact quantities of ingredients and the full method.

Steps 1-2 of preparing this recipe – the base mixture in a glass bowl and pressing down some of the mixture in a baking tin.

1 – Make the base/topping mixture:
In a large bowl, combine the flour, oats, salt and baking soda. In a smaller bowl, combine the melted butter, brown sugar and vanilla.

Add the wet ingredients to the dry ingredients and mix well. Reserve approximately ⅓ of the mixture for the topping.

2 – Add the base to your tin:
Press the remaining mixture into your prepared tin and bake in your preheated oven for 12 minutes or until a pale golden colour.

Steps 3-4 of preparing this recipe - making the caramel filling and the caramel on top of the base.

3 – Make the caramel:
While the base is baking, make the caramel. Add the sweetened condensed milk, butter, and brown sugar to a medium saucepan.

Over a medium heat, stir constantly for approximately 8 minutes, until the caramel has thickened slightly and is a light golden colour.

4 – Top the base with the caramel:
Once the base is ready, top immediately with the caramel mixture. Use an offset spatula to spread the caramel evenly, or carefully tilt the tin, whilst using oven mits or a tea towel to protect your hands.

Steps 5-6 of preparing this recipe - the bars ready to bake and a piece of the cooked bar on a plate.

5 – Top the bars with the crumble:
Sprinkle the remaining mixture over the top.

Bake for a further 12-15 minutes, or until the top is cooked through and a light golden brown.

Remove from the oven and allow to cool for 30 minutes in the tin, before placing in the fridge for a further 30 minutes.

6 – Cut the bars:
Once the slice is cool, use a sharp knife to cut it into nine bars.

Cut squares of Caramel Oatmeal Bars, on a piece of baking paper.

Tips for success and FAQs:

The Caramel Oatmeal Bars must chill before being cut. If they are cut whilst they are still warm, they will fall apart. I like to cool them in the tin on the bench for 30 minutes before transferring to the fridge for 30 minutes. Once cooled, they can be cut into bars and enjoyed.

How can I make these gluten-free?

I have used gluten-free flour and oats to make these Caramel Oatmeal Bars. However, there are differing views regarding gluten-free oats, depending on where you live in the world. For Australian residents, Coeliac Australia provides a great resource on this topic. Always be sure to read the labels and consult with a health professional if you are unsure.

Can I use another type of filling?

You will also find recipes for Nutella Bars, Peanut Butter Bars and Jam Bars on the blog. They are all so delicious and very simple to prepare.

Can you freeze the Caramel Oatmeal Bars?

Yes, they freeze very well. Allow the bars to cool completely, and then put them in an airtight container and freeze. If storing them in layers, it is best to place a sheet of baking paper between the bars to prevent them sticking together. Defrost in the fridge overnight and bring back to room temperature before consuming. They will keep for two months.

How should I store the crumble bars?

Store in an airtight container. The bars will be at their best for the first two days but will last for 4 (they will just soften a little). I keep them in the pantry, but if the weather is warm, keep them in the fridge. If storing in the fridge, remove at least 10 minutes prior to serving.

Variations and substitutions:

Chocolate chips – a great addition to your filling. Just sprinkle some on top of the caramel.
 
Nuts – you may like to add a little crunch with some slivered almonds sprinkled on the caramel filling.

A piece of Caramel Oatmeal Bar on a small round plate, with a fork holding a piece of the bar.

Serving suggestions:

The Caramel Oatmeal Bars are very versatile. Some suggestions to enjoy them are:

  • For morning or afternoon tea – delicious with a cup of coffee!
  • They are great as an after-school snack.
  • As an easy breakfast when time is short.
  • They travel well, so are ideal for picnics or potlucks.
  • As a welcome edible gift.

I hope these Caramel Oatmeal Crumble Bars become your new favourite sweet treat (like they are mine!) Be sure to let me know in the comments below when you have given them a try – I love hearing from you! Caramel lovers, this one is for you!

Alex xx

More delicious recipes for you to try:

  • Cut squares of jam bars, sitting on parchment paper with a few raspberries scattered around the edge.
    Jam Oatmeal Bars
  • Cut squares of Pumpkin Oatmeal Bars, sitting on some baking paper.
    Pumpkin Oatmeal Bars
  • Cut squares of Nutella Oatmeal Bars, sitting on a round white plate, with a dish of Nutella and knife on the edge.
    Nutella Oatmeal Bars
  • Cut squares of Peanut Butter Oatmeal Bars, sitting on some baking paper.
    Peanut Butter Oatmeal Bars

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Cut squares of Caramel Oatmeal Bars, on a piece of baking paper.

Caramel Oatmeal Bars

These delicious Caramel Oatmeal Bars are likely to become your new favourite recipe. With a crisp base, a sweet, slightly chewy caramel centre, and a crumble topping, this is an easily made sweet snack that the whole family will enjoy. If you love a good, sweet treat that is quick to make, then this recipe is for you – the hardest part is waiting for them to cool down!
5 from 4 votes
Print Pin Review
Course: Afternoon Tea, Dessert, Morning Tea
Cuisine: International
Prep Time: 10 minutes minutes
Cook Time: 30 minutes minutes
Cooling Time: 1 hour hour
Total Time: 1 hour hour 40 minutes minutes
Servings: 9 bars
Calories: 574kcal
Author: Alexandra Cook – It’s Not Complicated Recipes

Please note:

For accuracy, when weights are provided, we recommend weighing your ingredients. This will produce the best results. All oven temperatures listed are for fan forced.

Ingredients

For the Base and Crumble Topping:

  • 1 ½ cup (225 g) all-purpose/plain flour See Note 1
  • 1 ½ cup (120 g) old-fashioned rolled oats See Note 2
  • 1 teaspoon sea salt
  • ½ teaspoon baking/bicarb soda
  • ¾ cup (185 g) unsalted butter – melted
  • ⅓ cup (70 g) light brown sugar
  • 2 teaspoon vanilla extract

For the Caramel Filling:

  • ½ cup (125 g) unsalted butter
  • ½ cup (100 g) light brown sugar
  • 395 g (14 oz) can of condensed milk See Note 3

Instructions

  • Preheat your oven to 175 Degrees C (350F).
  • Line a 20 x 20cm (8 x 8 inch) baking dish with non-stick baking paper.
    (Allow an overhang with the baking paper – it makes it easier when removing the slice!)
  • In a large bowl, combine the flour, oats, salt and baking soda.
  • In a smaller bowl, combine the melted butter, brown sugar and vanilla.
  • Add the wet ingredients to the dry ingredients and mix well.
    Reserve approximately 200g/7 oz of the mixture (about ⅓ of the mixture) for the topping.
  • Press the rest of the mixture into your prepared tin, and bake for 12 minutes or until a pale golden colour.
  • While the base is baking, make the caramel. Add the sweetened condensed milk, butter and brown sugar to a medium saucepan.
  • Over a medium heat, stir constantly for approximately 8 minutes, until the caramel has thickened slightly and is a light golden colour.
  • Once the base is ready, top immediately with the caramel mixture – use an offset spatula to ensure the caramel is even.
  • Carefully sprinkle the remaining mixture over the top – crumbling it as you go.
  • Bake for a further 12-15 minutes, or until the topping is cooked through and a light golden brown.
  • Remove from the oven, and allow to cool in the tin on your benchtop 30 minutes, before placing the tin in the fridge for a further 30 minutes.
    Once the slice is cool, it can be cut into nine bars using a sharp knife.

Notes

  1. Flour: this recipe has been tested using a gluten-free all-purpose/plain flour.
  2. Rolled oats: use certified gluten-free oats along with flour if you require this recipe to be gluten-free.
  3. Sweetened Condensed Milk: full fat only. Do not use low fat or skim.
  4. Measurements: for the most accurate measurements when baking, we suggest you weigh your ingredients.
  5. Chill the bars: the Caramel Bars really need to chill before cutting, otherwise, they will fall apart. 
  6. Storage: store in an airtight container in a cool location. The bars will be at their best for the first two days but will last for four (they will just soften a little). If the weather is warm, keep them in the fridge in an airtight container for up to a week. Remove them about 10 minutes prior to serving.
  7. Freezing: allow the bars to cool completely, and then put them in an airtight container before placing them in the freezer.  If storing them in layers, place a sheet of baking paper between the layers so they don’t stick. Thaw them at room temperature. They will keep for two months.
Made this recipe? We’d be so grateful if you could leave a comment and rating at the bottom of the page!

Nutrition Estimate:

Calories: 574kcal | Carbohydrates: 69g | Protein: 8g | Fat: 30g | Saturated Fat: 19g | Polyunsaturated Fat: 2g | Monounsaturated Fat: 8g | Trans Fat: 1g | Cholesterol: 83mg | Sodium: 385mg | Potassium: 270mg | Fiber: 2g | Sugar: 44g | Calcium: 160mg | Iron: 2mg
Nutritional Disclaimer:

The nutritional information is an estimate only, and is derived from online calculators. For accurate results, we recommend calculating the nutritional information based on the ingredients and brands you use.

This post was originally published as Caramel Crumb Bars in June 2020. It has been updated with more information and new photos. The recipe quantities remain the same, but the method has been updated slightly.

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Reader Interactions

Comments

  1. Jody

    October 27, 2024 at 4:21 pm

    when making the caramel, is it boiling while you stir for the entire 8 min? or is the 8 min started from the time you start heating it? Just want to be sure i don’t under or overcook it. thanks

    Reply
    • Alexandra Cook

      October 27, 2024 at 4:28 pm

      Hi Jody,
      The eight minutes starts from the time you put the ingredients in and start heating it.
      To help guide you, we have some process shots in the blog post – you’ll see it is a light golden colour.
      The biggest tip to follow is to stir it constantly – this will stop it from sticking to the pan and burning.
      Let me know how you get on! Alex xo

      Reply
  2. mxne

    January 09, 2024 at 9:03 pm

    5 stars
    A delicious treat that was so simple to make and satisfied my late night dessert cravings! Very few ingredients and pretty much stuff lying around in the cupboards that were unused were finally used! Pulled it off on the first try and this will now be a staple in my household

    Reply
    • Alexandra Cook

      January 10, 2024 at 10:40 am

      Thank you so much for trying this recipe, and I am thrilled you enjoyed it. Glad to hear you’ll be making it again 🙂
      Alex xo

      Reply
  3. Sherrie

    October 24, 2023 at 10:50 pm

    5 stars
    I made these for a family get together we had recently and they were a BIG hit with my granddaughters. I plan to make them again at Christmas, I made them a few days in advance and kept them in the refrigerator and they held up very well. Thanks for sharing such an easy recipe and a winner !

    Reply
    • Alexandra Cook

      October 25, 2023 at 9:31 pm

      This is lovely to hear, Sherrie 🙂
      So happy they were a success! Thanks for sharing, Alex xo

      Reply
  4. tahiya

    August 15, 2020 at 5:14 pm

    Hi, I’d love to make these! I do have leftover caramel sauce already though, so would it be possible to tell me how much sauce is used in the recipe? thanks!

    Reply
    • Alexandra

      August 15, 2020 at 5:20 pm

      Hi Tahiya!
      This is a rough estimate –
      1 3/4 cup to 2 cups approximately.
      Unfortunately, I haven’t ever measured the caramel, as it is boiling hot when made for the crumb bars and we put it straight on the cooked base.
      You might find you need to reheat your caramel slightly in order for it to be spreadable on the base.
      Hope it goes well for you! Kind regards, Alex

      Reply
  5. Dana

    July 06, 2020 at 9:32 am

    5 stars
    One of my new favourite treats!!

    Reply
    • Alexandra

      July 06, 2020 at 4:30 pm

      They really are delicious. Caramel is always a winner! 🙂

      Reply
  6. Joanne Gauthier

    July 04, 2020 at 5:21 am

    I love the way you have displayed your recipe! Step by step with accompanying photos and explanations and ingredients. I have never seen this done this way but I love it! Now I can’t wait to try!

    Reply
    • Alexandra

      July 04, 2020 at 2:12 pm

      Hi Joanne, thank you so much for the fantastic feedback, I do appreciate it. Please let me know if you make the Caramel Crumb Bars. 🙂

      Reply
  7. Deanna

    June 26, 2020 at 12:32 pm

    5 stars
    Oh my goodness, could it get any better? Such an easy recipe and so yummy.

    Reply
    • Alexandra

      June 29, 2020 at 10:53 am

      It’s difficult to get better than a caramel-filled crumb bar. 🙂 They are very, very good! I do hope that you try them. 🙂

      Reply

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