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These Gluten-Free Blondies with White Chocolate and Pecans are incredible. Made with a tasty blend of gluten-free flours to enhance this celebration of butterscotch and vanilla flavours. These blondies are studded with white chocolate chips and pecans for a real crowd-pleasing traybake. No xanthan gum needed.
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These are a gluten-free blondie recipe which you will truly love. Don't you think sometimes blondies can be a little disappointing? By their nature blondies are rich with butterscotch flavour but this can sometimes translate to a sickly sweet treat. Not so here, if you follow these ingredients then you'll achieve a good balance of sweetness with the same caramel like flavour without the tooth aching sweetness. They charm with vanilla, cheeky white chocolate and are deliciously nutty thanks to a scattering of chopped pecans.
I've got many tips on why these will become your best ever gluten-free blondies including adding a pinch of coffee powder, browning your butter and making sure you use a balanced blend of gluten-free flours.
By blending the flours yourself and steering away from gluten-free all-purpose flour you will achieve blondies which have a perfect fudgy, chewy texture which are moist and hold together well. Plus by mixing your own flours you won't need any xanthan gum. And don't worry if buying separate gluten-free flours seems overwhelming, I'll give you substitutions so you feel comfortable and confident with the ingredients.
Why This Gluten-Free Blondies Recipe Works
Browned Butter. Blondies need melted butter anyway to ensure their delightfully soft chewy texture so why not take it one step further. All you need to do is melt your butter a little longer than needed so that toasty nutty flavour develops. Your finished butterscotch blondies will thank you for it.
Coffee Powder. If you are put off blondies due to their overly sweet nature then you'll love the presence of a gentle hint of coffee powder. It seems to absorb the trappings of the sickly sweet blondie and balance it out, creating the most intense gluten-free butterscotch blondies without a sugar hangover.
Two Different Types of Sugar. It’s also necessary to use two different types of sugar here. It sounds a little bit of a faff but I do it in a lot of my recipes and it’s worth it. Brown sugar is used for flavour and moisture and white sugar is used to give body and a firmer texture.
Gluten-Free Flour Blend. You'll avoid any grainy, dry, crumbly blondies simply by mixing your own flours so you can ensure the balance is suitable for this recipe. You are not relying on a specific brand which you may or may not have access to.
White Chocolate Chips and Pecans. The perfect flavour combination.
Ingredients
Gluten-Free Flours
I do not recommend swapping the flours below for a shop bought all-purpose gluten-free flour as you won't get the same result. You can swap for my Homemade Flour Blend or you can substitute the individual flours as recommended below.
Oat flour. If we’re looking for that butterscotch taste then this is the only contender. If you can’t tolerate oats then never fear, you can substitute with sorghum flour. However, if you can tolerate oats then go with them as their flavour was made for these blondies. You can substitute for buckwheat flour or sorghum flour.
Sweet rice flour. The gentle flavour works well here. But we also need it for its starchy qualities, to help the blondie stick together and promote the chew factor. You can substitute for cassava flour.
Potato starch. Included here to balance out the two flours and give good structure. You can substitute for tapioca flour.
Other Ingredients
Unsalted Butter. We need unsalted so we can control the salt content of the recipe. Make sure it is at room temperature.
Light muscovado is used for its gentle molasses taste. We’re trying to evoke butterscotch tasting blondies here and light muscovado is the perfect choice. It also gives extra moisture to the bake so we’re leaning into the fudgey chew that we like so much. However, too much and we’ll have a sloppy blondie at the end of the day. You can substitute for light brown sugar.
Caster sugar gives a little bit more body to the blondie and a firmer texture.
Eggs. This recipe uses medium size, about 60g each with shell (50g each without shell). These are often classified as large eggs in the US. I recommend weighing your eggs to ensure the correct amount.
Vanilla extract. Use a good quality extract, I like Nielsen Massey.
Baking powder. A leaving agent which causes the cake to rise and become light and fluffy. Do check your baking powder is gluten-free before use.
Coffee powder. If you use espresso powder then you can use it straight into your batter without having to dissolve in liquid first.
Salt. I like to use kosher salt in my baking as it has a round gentle flavour. Using salt in your baked goods lifts and sharpens all the other flavours.
White chocolate. I recommend using a whole bar of white chocolate hand chopped into shards, some big some, small pieces. It’s a preferred choice rather than chocolate chips as some of the shards may melt into the batter during the bake which just tastes really good. We also keep some bigger shards for texture. Use a good quality white chocolate bar like Green and Blacks is excellent too and you can chop into small chocolate chips.
Pecans. A few chopped nuts in the mix work so well for taste and texture too and pecans are my preferred choice. Use a freshly opened bag so you know they are not rancid. You could also use hazelnuts or almonds.
How To Make Easy Gluten-Free Blondies
- Pre-heat and prep tin. Preheat oven to 180°C/160°C fan/gas mark 4. Line and grease a 20cm square baking tin.
- Brown butter. Place butter in a small saucepan over medium heat until it smells toasty and the hissing subsides. Pour into a heatproof bowl.
- Wet ingredients. Stir sugars into the browned butter, then add eggs and vanilla extract.
- Dry ingredients. In a separate bowl, sift together sweet rice flour, oat flour, potato starch, baking powder, coffee powder, and salt.
- Mix. Combine the dry ingredients into the wet ingredients and mix well.
- Add-ins. Fold in chopped white chocolate and pecans, then pour the blondie batter into the baking tin.
- Bake. Place in pre-heated oven and bake for 30 minutes until golden brown.Â
- Cool. Let the blondies settle in the tin for 10 minutes before removing, Then cool on a rack, and cut into 12 bars.
Expert Tips
Room Temperature Ingredients. Ensure that all the ingredients including the eggs and melted butter are at room temperature. This helps in achieving a smoother batter, even mixing and helps them to emulsify together so the cake isn’t greasy.
Measure Ingredients Accurately. Use precise measurements for all ingredients, this is especially the case when working with gluten-free flours. And I urge you to use digital scales, any slight variation in measurements can alter the desired texture and consistency.
​Recipe Variations
Add-ins. You can swap out the white chocolate and pecans for your favourite add-ins. Why not try:
- Peanut butter chips
- Butterscotch chips
- Dark chocolate chips
Shop The Recipe
- 8 inch square baking tin
- Gluten-free-oat flour
- Gluten-free sweet rice flour
- Gluten-free potato starch
FAQs
This gluten-free blondies recipe has only been tested with eggs and dairy ingredients. You can substitute the dairy if you have a favourite plant based butter which works well as a 1:1 swap.
Yes, the blondies keep well for up to 5 days when you follow the storage instructions below.
You can store them in an airtight container (but preferably tin rather than plastic as it plastic will keep the blondies too moist). Then store in a cool dark place.
Absolutely. You can freeze the blondies successfully by double wrapping it. First wrap it tightly in plastic wrap then aluminium foil. Then either place in a resealable freezer bag or airtight container. Don’t forget to label including the date. To enjoy, thaw in the refrigerator overnight, allowing it to come to room temperature before serving.
These blondies are baked in a 20cm (8 inch) square cake tins. I really like to use silver anodised cake tins which give an even bake. Silver aluminium cake tins are great too.
More Gluten-Free Recipes You'll Love
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Gluten-Free Blondies with White Chocolate and Pecans
Ingredients
- 165 g unsalted butter
- 125 g soft light brown muscovado sugar
- 100 g caster sugar
- 2 eggs - medium sized
- 1 teaspoon vanilla extract
- 100 g sweet rice flour - glutinous rice flour
- 90 g oat flour
- 35 g potato starch - not potato flour
- 1 teaspoon baking powder
- 1 teaspoon coffee powder
- ½ teaspoon salt
- 100 g white chocolate - chopped into small pieces
- 75 g pecans - roughly chopped
Instructions
- Pre-heat the oven to 180°C / 160°C fan assisted /gas mark 4 / 350°F and line and grease a 20cm (8 inch) square baking tin.
- Brown the butter by melting the butter in a small saucepan over a medium heat. Once melted the butter will start hissing and cracking and forming little brown bits at the bottom of the pan. Wait until the noises start to subside and the butter smells toasty Remove from the heat straightaway and pour into a heatproof mixing bowl so it doesn’t begin to burn.
- Stir the sugars into the butter, followed by the eggs and vanilla extract.
- Sift the sweet rice flour, oat flour and potato starch together, in a separate mixing bowl, with the baking powder, coffee powder and salt.
- Beat the flour mix into the wet ingredients until completely combined.
- Fold in the chopped white chocolate and pecans and pour the batter into the baking tin.
- Bake for 30 minutes then leave in the tin to settle for 10 minutes.
- Remove from the tin and leave to cool on a cooling rack before cutting into 12 bars.
Notes
- Sweet rice flour can be swapped for cassava flour.
- If you can't have oat flour then you can substitute with sorghum flour.
- Potato starch can be swapped for tapioca flour (tapioca starch)
Annie says
I didn’t actually know what a blondie was (which is kind of stupid) and these are so easy to make and delicious. I made them for a social distancing meet up and my friends couldn’t stop eating them. A lovely day, an empty cake tin, great success! Thank you
Georgina Hartley says
That's a pleasure Annie - thank you!
Daniela George says
I wasn't expecting a much from a gluten free recipe, but with my sister in law coming over I wanted to try to make something that she could have. I loved the idea of browning the butter, and also the explanations of why the ingredients were important. I had to substitute the flours with plain gluten free flour and pecans with walnuts as it was all I had in the pantry. I was so surprised at how good it was. Within 24 hours it's all gone, and my sister in law barely had any. I think with the right flours and with pecans it will be even better so I can't wait to try it. I'm making another batch today, it's THAT good. Thanks for the great recipe. We all agree, it's the best blondie we've ever eaten.
Georgina Hartley says
Hi Daniela, that's great! I'm so happy you love these blondies as much as I do. Thank you so much for your feedback!!
Brad Gelfond says
I LOVE blondies, and these blondies look amazing!! Can't wait to try them. I'm allergic to caffeine so I have to stay away from coffee. Could I leave that out? Or, what if I replaced it with matcha (which I'm able to have)? That could balance some of the sweetness and be the counterpoint of the caffeine. Any other thoughts?? Btw, LOVE LOVE LOVE your blog.
Georgina says
Hi Brad. My advice would be to just leave the coffee out. A matcha blondie sounds delicious but it would change the flavour of the blondie quite a bit. If you wanted to include matcha I would probably leave out the pecans too, but keep the white chocolate!!