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Birthday Cake Brownies
Florence Jackson

Birthday Cake Brownies

These Birthday Cake Brownies are the ultimate birthday bake but in brownie form. Thick and fudgy brownies get a generous layer of funfetti cookie dough running through the middle. Perfect served as they are or warmed up with a little whipped cream.
These are so easy to make, relying on my classic brownie recipe with the addition of funfetti cake mix. Make the cake mix up as described in the recipe. Then, use half this batch for the brownies then you can bake the rest up as cookies! OR you can just use half the mix.
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Prep Time 20 minutes
Cook Time 25 minutes
Total Time 45 minutes
Servings: 9
Course: Dessert
Cuisine: American
Ingredients Method Notes

Ingredients
  

For the Brownie
  • 100 g Semi-Sweet Chocolate Melted
  • 170 g Unsalted Butter Melted
  • 100 g Granulated Sugar
  • 100 g Light Brown Soft Sugar
  • 2 Medium Eggs
  • 2 tsp Vanilla Extract
  • 90 g All Purpose Flour
  • 30 g Cocoa Powder
For the Birthday Cake Layer
  • 15.25 oz Box Funfetti Cake Mix (425g Box in the UK/elsewhere)
  • 2 Large Eggs
  • 120 ml Vegetable Oil

Method
 

For the Brownie Layer
  1. Pre-heat the oven to 180℃/360℉. Line an 8x8" square baking pan. 
  2. Melt the dark chocolate by breaking up into small pieces in a bowl and heating for 30 second intervals in a microwave, stirring in between. Set aside to cool whilst making the brownies.
  3. In a large bowl or the bowl of a stand mixer combine the melted butter, and both the brown and granulated sugars on a medium speed until totally combined. Add the eggs and vanilla and mix again. Add in the melted chocolate.
  4. Fold in the flour and cocoa powder. Set Aside.
For the Birthday Cake Layer
  1. Combine the funfetti cake mix, oil and eggs. Stir to form a sticky cookie dough. We will use half of this cookie dough. For the other half: follow my cake mix cookie recipe (place balls of the dough on a sheet pan and bake 15 minutes).
  2. Pour half the brownie batter into the prepared pan. Top with the cookie dough - you may want to use your hands to spread in an even layer. Top with the remaining brownie batter and spread to cover the cookie dough.
  3. Bake 25 minutes (add 5 minutes if the batter still looks runny/very wobbly). Remove and let cool before slicing and serving.

Notes

Notes:
This might look like a lot of steps and a lot of ingredients, but truly this is so fun to make. That said, if you really want to save time, you could use a brownie box mix for the middle part. I find making the cake yourself crucial for that perfect homemade cake taste. This is totally up to you though.