Ingredients:

  • 1/2 cup (115g) Unsalted butter, melted and hot
  • 1 cup (200g) White granulated sugar
  • 1/4 cup (50g) Packed light brown sugar
  • 2/3 cup (60g) Unsweetened cocoa powder
  • 2 Large eggs, cold
  • 1 tsp (5ml) Pure vanilla extract
  • 1/2 cup (65g) All-purpose flour
  • 1/4 tsp (1.5g) Fine sea salt
  • 1/2 cup (90g) Semi-sweet chocolate chips

Instructions:

  1. Preheat your oven to 350°F (175°C). Line an 8x8 inch square baking pan with parchment paper, leaving an inch of overhang on the sides for easy removal.
  2. In a large microwave-safe glass bowl, combine the hot melted butter with the granulated sugar and brown sugar. Whisk vigorously for 1 minute until the mixture resembles wet sand.
  3. Add the cold eggs and vanilla extract to the butter mixture. Whisk vigorously by hand for a full 2 minutes until the batter transforms into a smooth, pale, ribbon-like consistency.
  4. Sift the cocoa powder, all-purpose flour, and sea salt into the bowl. Use a silicone spatula to gently fold the dry ingredients into the wet batter until just combined. Fold in the chocolate chips if using.
  5. Pour the batter into the prepared pan and bake for 25 minutes, or until the edges are set and the top is crackly, while the center remains slightly soft.