Oreo Blondies

Chocolate chips and crushed Oreos make perfect pairing for these blondies. Chewy on the outside and gooey on the inside, these blondies are the best sweet treat and are incredibly easy to make. They can also be adapted to make nut-free or dairy-free blondies too! Take a look at the recipe below for some coeliac-friendly blondies that you won’t believe are gluten-free!

Blondies are the lesser known companion of brownies, but essentially the same fudgey bars, just made with white chocolate rather than milk chocolate. My take on blondies are without the white chocolate but laced with vanilla, chocolate chips and Oreos, making them little bites of cookies and cream heaven. And, they are incredibly easy to make!

So, how are easy are these blondies to whip up. Well, even the less confident of bakers will feel comfortable with this recipe. After melting and cooling the butter, the eggs, vanilla extract, light brown sugar and white caster sugar is whisked in until completely combined. In a separate bowl, the flour, ground almonds, Xanthan Gum, salt and baking powder is whisked together before being combined with the wet ingredients to form a thick gloopy mixture. Fold in the crushed Oreos and chocolate chunks before transfering the mixture to a square baking tin, and baking for around 30 minutes at 160C. Once the blondies have that classic shiny and crackled golden top, they’re done and ready for a drizzling of extra chocolate before being devoured! The key is not to overbake the blondies so that they retain that gooey texture rather than a cakey one.

What substitutions are possible?

Nuts– If you need to make these blondies nut-free you can substitute the 50g ground almonds for 30g extra gluten-free plain flour.

Butter – Butter can be substituted for a vegan/dairy-free block if necessary. Try not to use a soft spread such as margarine as this may not work as well.

Chocolate chunks – Milk, dark or white chocolate chunks/chips can be used depending on your preferences.

What equipment do I need for these blondies?

  • Square baking tin sized 8 inch/20cm
  • 2 bowls
  • Baking paper

What ingredients do I need?

Sugar – A mixture of light brown sugar and white caster sugar provides the perfect balance of sweetness in this recipe and helps to hold them together

Eggs– Eggs provide structure to the blondies and are best used straight out of the fridge in this recipe. Room temperature eggs blend into batters and mixtures much more easily and allow for more rise than cold eggs straight out of the fridge. Blondies need to be gooey and dense, so it is best to use cold eggs for these in order to achieve that denser texture

Butter – Use unsalted butter for this recipe so that you can control the amount of salt being added. The butter needs to be cooled to room temperature after melting to avoid cooking the eggs when whisking up together. Melting the butter makes the blondies extra gooey so don’t skip this step!

Gluten free flour – A gluten free flour blend such as Doves Farm Plain Flour or Schär Mix C for Cakes is perfect for these biscuits. Self-raising flours tend to contain baking powder which means you can’t fully control the amount going in and therefore the spread of the blondies. Try to go for a plain flour so you can anticipate and control the spread with the baking powder that you add in

Xanthan gum – Xanthan gum is essential for most gluten free recipes and there’s no exceptions here. Doves Farm is my preferred choice but you can use any brand. Xanthan Gum is a gluten replacement for gluten-free baking and helps to replace the lost elasticity that gluten provides, keeping your blondies together and stopping them from crumbling into dry pieces later

Baking powder – Baking powder acts as a leavening agent, helping the blondies to rise. Any baking powder will work, just again, check that it is definitely gluten-free as not all brands are.

Salt – A pinch of salt in a recipe enhances the flavours of the other ingredients and offsets the sweetness of the blondies. I like to sprinkle a tiny amount of sea-salt on top of the blondies after baking too!

Chocolate chunks or chips – Semi-sweet chocolate chunks or chips are folded into the blondies in the final stage before baking. Any gluten-free chocolate can be used!

Chopped Oreos – Roughly chopped or crushed Oreos are the star ingredient in these blondies, giving them that cookies and cream flavour. Many gluten-free brands now sell their own version of Oreos so they can be found in most supermarkets. For these blondies, I used Schär’s Chocolate O’s which give you 16 small Oreos, or 165g to be more exact.

Vanilla essence – A few drops of vanilla extract enhances the flavour of the blondies. Vanilla paste can be used too or vanilla from a vanilla pod

Milk chocolate – Milk chocolate is melted and drizzled over the blondies at the end to finish them off perfectly (optional)

Oreo Blondies

These chewy and gooey blondies are loaded with chocolate chips and crushed Oreos
Prep Time15 minutes
Cook Time25 minutes
Course: Dessert
Keyword: blondies, chocolate, gluten-free, Oreos
Servings: 9


For the blondies

  • 265 g gluten-free plain flour blend
  • 210 g unsalted butter melted and cooled
  • 150 g white caster sugar
  • 150 g light brown sugar
  • 30 g ground almonds
  • 2 large eggs cold
  • 1 tbsp cornstarch or corn flour
  • ¼ tsp Xanthan Gum
  • ½ tsp baking powder
  • ¼ tsp salt
  • ½ tsp vanilla extract
  • 100 g macadamia nuts roughly chopped
  • 50 g chocolate chips
  • 50 g milk chocolate (optional)


  • Preheat the oven to 160C Fan and line an 8 inch (20cm) square baking tin with baking paper. Grease throughly with a greasing brush.
  • Melt the butter and allow to cool to room temperature before whisking in the eggs, vanilla extract and light brown and white sugar.
  • In a separate bowl, whisk together the flour, ground almonds, Xanthan Gum, salt, baking powder and cornstarch.
  • Make a well in the dry ingredients and pour the wet ingredients into the dry, mixing until no pockets of flour remain.
  • Fold in the chocolate chips and crushed Oreos, making sure to save some to press onto the top before baking.
  • Transfer the mixture to the baking tin, making sure the mixture is spread evenly into all four corners. Level off the mixture with an offset spatula and sprinkle with the extra chocolate chips and crushed Oreos that were previously saved.
  • Bake on the middle shelf for around 25-30 minutes. The top of the blondies will be starting to turn a more golden brown and have a shiny crusty surface when done. Try not to overbake the blondies as they need to still be gooey inside.
  • Set the blondies aside to cool before drizzling with melted milk chocolate (optional).

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