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Gluten-Free Apple and Cranberry Oat Bars

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These Gluten-Free Apple Cranberry Oat Bars are an absolutely irresistible treat. Their crumbly oaty biscuity exterior reveals a juicy peek of tangy apple and cranberry. They are a quick and easy crowd pleasing bake. Secret tip โ€“you can even make with leftover cranberry sauce!!

overhead of apple cranberry bars on a white surface

This idea of encasing delicious fruity goodness within an oat cookie bar came to me by way of The Pioneer Woman and her Strawberry Oatmeal Bars. I was so taken by how simple and effective they were that Iโ€™ve been making various gluten-free versions of this recipe ever since I first started blogging.

These Gluten-Free Apple Cranberry Oat Bars are made with an incredibly easy dough which is just flour, oats, butter and sugar. Half of the dough is pressed into a baking dish, then layered with and apple and cranberry compote, then the other half of the dough is layered on top. Baked, cut and enjoyed.

Iโ€™ve experimented with all kinds of different flavours including Nutella, cream cheese, and mincemeat. These Gluten-Free Apple Cranberry Oatmeal Bars though are a gloriously tangy fruity triumph and maybe even my favourite version of this recipe.

side view of apple and cranberry bars

Why youโ€™ll love this recipe

  • Super quick. Once you've cooked down the apples, it takes no longer than 15 minutes to get these bars into the oven.
  • Easy peasy. A great bake to make with little ones.
  • The biscuit base with its sweet oaty flavour is a perfect compliment to the fruity tangy middle.
  • The cranberry flavour is from leftover cranberry sauce - so easy! You can use any cranberry sauce but if you have homemade then you will really be taking the flavour up a notch. READ MORE >>> Cranberry Clementine Sauce
  • Wonderful between meals treat that is perfect with a cup of tea, coffee or a long tall glass of milk.

Gluten-Free Apple Cranberry Crumble Flapjacks

If you love all kinds of different flapjacks (which are really the British way of saying โ€˜oatmeal barsโ€™) then these Apple Cranberry Bars are just a little bit more sophisticated with the fresh jam in the middle. The flour in the dough takes it a little bit beyond the flapjack and more into cookie territory though.

Gluten-free flours required

  • Cassava flour. This starchy flour is perfect for this recipe as it helps hold all the other ingredients together to give the bars a great structure and good bite. (No substitutions have been tested in place of the cassava flour)
  • Oat flour. To match the flavour of the bars we use ultra fine gluten-free oat flour. You can substitute for sorghum flour or just mill some gluten-free oats to produce the flour.
overhead of apple cranberry bars on a white surface

Ingredients needed

  • Bramley apples. For their beautiful tangy flavour. Plus they have the most lovely texture when cooked. You can use any tart cooking apple.
  • Cranberry sauce. I really recommend you use homemade cranberry sauce for the best flavour. ✨You can also use fresh cranberries and cook them down with the apples. If you do this then add 1ยฝ tablespoons caster sugar to the fruit.
  • Butter. Make sure itโ€™s unsalted at room temperature
  • Gluten-free flour. This recipe uses a combination of cassava flour and oat flour (as above).
  • Jumbo rolled gluten-free oats. For a lovely chewy toasted oaty flavour. You can use porridge oats if that is all you have to hand.
  • Soft light brown sugar. For flavour and sweetness.
  • Baking powder. For a lovely tender bite.
  • Salt. It amps up all the other flavours.

Step-by-step instructions

For full recipe instructions for these Gluten-Free Apple Cranberry Oatmeal Bars go to the recipe card at the end of this post. 

  1. Cook the apples until soft and tender and mix with the cranberry sauce.
  2. Make a cookie dough. Mix together the flour, the oats, the sugar, butter, baking powder and salt in a stand mixer or by hand.
  3. Assemble. Firmly press โ…” of the dough into the bottom of the baking tin. Spread the apple and cranberry sauce on top then crumble over the rest of the cookie dough, pressing in slightly.
  4. Bake for 30 minutes.
two images of ingredients in a saucepan and in a bowl
two images of the bowl of dough for apple cranberry bars
process images of the assembly of the apple cranberry bars

Pro tips

  • I like to cook the apples so some pieces have turned to a gorgeous smooth pulp and others still have a bit more body.
  • Try not to overbake the bars. You will take them out of the oven when they are just slightly underbaked. Leave them in the tin for 30 minutes so they can start to set. Remove them from the tin and cool completely on a wire rack.
  • Wait until they are completely cooled before eating. They will set firmer and hold together better the longer they are left.
overhead of apple cranberry bars on a white surface

Can you make in advance?

These bars are really at their best the day they are made, they tend to go a little soft the day after (although they are still delicious)

How to store

These are best kept in a bread bin or in aluminium foil as I have found airtight containers make them a little soft. They will store for a day or two.

How to freeze

Allow the bars to cool completely then flash freeze them in a single layer in the freezer for 8 hours. Once frozen then you can keep in an airtight container or in a ziplock bag. You can defrost the bars one at a time as and when you want to eat one.

Allow to defrost fully at room temperature before serving.

overhead of apple cranberry bars on a white surface

Variations to try

  • Apple and Blackberry Oat Bars. Just swap out the cranberry sauce for fresh blackberries. Cook the blackberries with the apple pieces and add 1ยฝ tablespoons sugar for extra sweetness.
  • Apple and Raspberry Oat Bars. Just swap the cranberry sauce for either a really good quality raspberry preserve or even fresh raspberries.
  • Cranberry Orange Oat Bars. Remove the apples completely and just use cranberry sauce or fresh cranberries. Plus add in a little orange zest.
  • Add nuts. You can add roughly chopped nuts to the cookie dough. I like to add the nuts just to the top layer of the dough. Pecans, walnuts or hazelnuts are all delicious here.

More gluten-free oat bars youโ€™ll love! 

Have you tried these Apple Cranberry Oat Bars? If you liked it, please leave a 5-star ⭐️ ⭐️ ⭐️ ⭐️ ⭐️ rating on the recipe card and consider leaving a comment as well! I would love to hear about how your recipe turned out and your feedback also helps other readers✨

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side view of apple and cranberry bars

Gluten-Free Apple Cranberry Oat Bars

These Gluten-Free Apple Cranberry Oat Bars are an absolutely irresistible treat. Their crumbly oaty biscuity exterior reveals a juicy peek of tangy apple and cranberry. They are a quick and easy crowd pleasing bake.
Prep Time 30 minutes
Cook Time 30 minutes
Total Time 1 hour
Course Dessert
Cuisine American
Servings 12 bars
Calories 373 kcal

Ingredients
 
 

  • 2 bramley apples - about 500g, peeled, cored and diced
  • 1 tablespoon water
  • 150 g cranberry sauce
  • 250 g unsalted butter - at room temperature
  • 140 g cassava flour
  • 90 g gluten-free oat flour
  • 170 g jumbo rolled gluten-free oats
  • 200 g soft light brown sugar - sifted
  • 1ยฝ teaspoons baking powder
  • ยฝ teaspoon salt

Instructions
 

  1. Put the apples in a medium saucepan with the water. Place the lid on and stew on a low heat for about 20 minutes, stirring occasionally until they have broken down and softened. Stir in the cranberry sauce and leave to cool.
  2. Pre-heat the oven to 180ยฐC / 160ยฐC fan assisted oven / gas mark 5 and line and grease a rectangular baking tin 8โ€ x 12โ€.
  3. Add the rest of the ingredients into a large mixing bowl (or you can use a stand mixer) and rub together with your hands until everything has come together to form a dough.
  4. Press โ…” of the dough into the base of the baking tin to form an even layer.
  5. Spread the cooled fruit on top.
  6. Crumble the rest of the dough on the top and press down lightly into the fruit, donโ€™t worry too much about it spreading out evenly.
  7. Bake in the oven for 30 minutes until the top is golden brown and the fruit bubbling up.
  8. Remove from the oven and leave to cool in the baking tray on a wire rack for 20 minutes.
  9. Remove from the tin and cool completely on a wire rack before cutting into bars.

Notes

Fresh cranberries. You can use fresh cranberries rather than leftover cranberry sauce. Use 150g cranberries and cook in the saucepan with the apples. Do add 1ยฝ tablespoons caster sugar as youโ€™ll need a little sweetness.
Gluten-free flours. Please note this recipe has only been tested with cassava flour and oat flour and no other gluten-free flour substitutions.
Best eaten within 24 hours. The bars are delicious up to 2 days but they have a tendency to go a little soft after the first 24 hours. Try not to store in an airtight container but in a bread bin or in aluminium foil instead. I have also just wrapped them in a clean muslin before as well.
This recipe was adapted from The Pioneer Woman's Strawberry Oatmeal Bars

Ingredient measurements

Please note that the US customary measurements for the ingredients provided are based on a conversion calculator. This recipe was tested with metric measurements and I recommend using a digital scale to weigh ingredients for the most accurate results.
READ MORE >>> Why you should always weigh vs measuring with cupsย 

Nutrition

Please note that the nutrition information provided below is an estimate based on an online nutrition calculator. It will vary based on the specific ingredients you use. Please seek a professional nutritionistโ€™s advice for further clarification.
The nutrition serving is for 1 bar, assuming the recipe is cut into 12 bars

Nutrition

Calories: 373kcalCarbohydrates: 50gProtein: 4gFat: 19gSaturated Fat: 11gPolyunsaturated Fat: 1gMonounsaturated Fat: 5gTrans Fat: 1gCholesterol: 45mgSodium: 111mgPotassium: 195mgFiber: 3gSugar: 25gVitamin A: 542IUVitamin C: 2mgCalcium: 72mgIron: 2mg
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8 Comments

  1. I have all those alternatives, so thank you for the advice.
    I've also just made your Malt Loaf, which I'm looking forward to trying. I love your recipes.

  2. Hi Georgina. Iโ€™ve guests coming and Iโ€™m going to make these today. I donโ€™t have Cassava flour and I know you havenโ€™t made them with other flours but please can you suggest a flour that would be a best substitute to try. Sorghum, rice flour, potato starch or another perhaps?

    1. Cassava flour is a starchy flour so you would need to replace it with another starchy flour or a flour that's high in protein. So the sorghum and rice flour are not good swaps. The potato starch is a better swap but I don't like to use it in too high a quantity as it has the tendency to go gummy. If you can have nuts then almond flour is your best choice. If not, I would split the amount between 2 starchy flours - potato starch, tapioca starch, cornflour (cornstarch). If all else fails you can just use the potato starch - it will still definitely taste good even if the texture isn't exactly the same.

    1. Hi Lee Ann, I've just included them for you if you click on the US Customary option. Please note, that in order to convert the recipe to quantities that make sense some ingredients have had to be rounded up or rounded down lest you have 0.89 cup of sugar. I have not tested the recipe using these US Customary measurements. I strongly advise to use a digital scale and weigh ingredients wherever possible.

    1. Hi Kate, there is a strong reason why I don't. However, I have just included the conversion for this recipe if you click on the US Customary option. Please note, that in order to convert the recipe to quantities that make sense some ingredients have had to be rounded up or rounded down lest you have 0.89 cup of sugar. I have not tested the recipe using these US Customary measurements. I strongly advise to use a digital scale and weigh ingredients wherever possible.