Cosmic Brownie in a Mug

microwave little debbies cosmic brownie in a mug

4.5 from 2 reviews

Rich, chocolatey brownie topped with melted chocolate and m&ms, an indulgent take on little Debbie's cosmic brownies that comes together in less than 5 minutes. 


  • 2 tbsp Unsalted butter
  • 30g Dark chocolate (1 oz) (approx 6 squares)
  • 2 tbsp Granulated sugar
  • 2 tbsp Whole milk
  • 4 tbsp All-purpose flour
  • 1/4 tsp Baking powder
  • Melted chocolate and m&ms for decorating


  1. Combine the butter and chocolate in a mug and microwave for 30 seconds until melted
  2. Add the sugar, milk, flour and baking powder, mix until combined
  3. Microwave for 1 minute to 1 minute 30 seconds
  4. Top with melted chocolate and m&ms

Keywords: little debbie's brownies, cosmic brownies, microwave cake, easy cake

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