Ingredients:

  • 1/2 cup (115g) unsalted butter
  • 1 cup (170g) semi-sweet chocolate chips
  • 3/4 cup (150g) granulated sugar
  • 2 large eggs
  • 1 tsp (5ml) vanilla extract
  • 1/2 cup (120ml) Dr Pepper soda
  • 1/2 cup (65g) all-purpose flour
  • 1/4 cup (25g) unsweetened cocoa powder
  • 1/4 tsp (1.5g) salt
  • 1/2 cup (90g) dark chocolate chunks

Instructions:

  1. Preheat oven to 350°F (175°C) and line a 9x9 inch baking pan with parchment paper, leaving an overhang on the sides.
  2. Combine butter and semi-sweet chocolate chips in a microwave-safe bowl. Heat in 30-second bursts, stirring in between, until the mixture is glossy and smooth.
  3. Whisk granulated sugar into the melted chocolate mixture.
  4. Add eggs one at a time, stirring vigorously after each addition until the batter is shiny, then stir in the vanilla extract.
  5. Gradually pour in the Dr Pepper, stirring until the batter is well-blended and velvety.
  6. Sift in the flour, cocoa powder, and salt. Fold dry ingredients into the wet batter using a spatula until no streaks of white flour remain.
  7. Gently fold in the dark chocolate chunks.
  8. Pour batter into the prepared pan and bake for 30-32 minutes, or until edges are set and the center has a slight jiggle.