Recipe: Fitwaffle's Cookies and Cream Stuffed Brownies
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Recipe: Fitwaffle’s Cookies and Cream Stuffed Brownies

One of TikTok's most beloved bakers shares a show-stopping brownie recipe

Eloise Head, also known as Fitwaffle, is renowned on TikTok and Instagram for her baking recipes, which are based around an ethos of ‘everything in moderation’. Her new book Baked In One is out this February, and features 100 recipes that can all be made in one simple tin – many with just a few ingredients. Here we share one of them: cookies and cream stuffed brownies, which are sure to make you very popular with your family, friends and colleagues (if you can bear to share them, of course).

Recipe: Cookies and Cream Stuffed Brownies

A rich and fudgy brownie, packed with white chocolate chips with a layer of whole cookies and cream biscuits through the middle. There’s a cookie per slice and cookie pieces on top, so you’ll always get a bite that’s bursting with different flavours and textures! Absolutely delicious.


  • 170g (6oz) unsalted butter, melted and cooled slightly 
  • 100g (½ cup) light brown sugar 
  • 150g (¾ cup) caster (superfine) sugar 
  • 2 large eggs 
  • 125g (4.5oz) dark chocolate (at least 50% cocoa), broken into pieces, melted and cooled slightly 100g (¾ cup) plain (all-purpose) flour 
  • 30g (4 tbsp) cocoa powder 
  • 1 tsp salt 
  • 200g (scant 1 cup) white chocolate chips 
  • 22 cookies and cream biscuits (I use Oreos), 16 whole + 6 broken into small pieces for the topping


  1. Preheat the oven to 190°C (170°C fan)/375°F/Gas mark 5 and line a 20cm (8in) square baking tin with nonstick baking paper. 
  2. Put the melted butter and both sugars into a large mixing bowl and beat together with an electric hand mixer for about 2–3 minutes until fully combined and no lumps remain. Add the eggs and continue to beat until thick and fluffy (this could take from a few minutes up to 15 minutes, depending on the temperature of the ingredients and your equipment). Mix in the melted chocolate until just combined. 
  3. Sift in the flour, cocoa powder and salt, then gently fold in with a wooden spoon or rubber spatula until no streaks of flour remain. Fold in the white chocolate chips until evenly distributed. Transfer half the batter into your prepared tin and smooth it out to the edges. Place the 16 biscuits in lines across the batter. There will be 1 biscuit per square. 
  4. Scoop the remaining brownie batter on top of the biscuits, smoothing it out gently. Sprinkle the broken biscuits evenly over the top of the batter. 
  5. Bake for 25–30 minutes until the edges are cracked and the middle no longer wobbles. Leave to cool completely in the tin, then chill in the refrigerator overnight for best results. Cut into 16 squares and enjoy! 
  6. Store in an airtight container at room temperature or in the refrigerator for up to 5 days.

Baked in One cookbook

Extracted from Fitwaffle’s Baked In One by Eloise Head (Ebury Press, £22) Photography by Faith Mason