• 3 ounces unsweetened chocolate, chopped
  • 12 cup unsalted butter
  • 2 large eggs
  • 114 cups white sugar
  • 34 teaspoon kosher salt
  • 1 teaspoon pure vanilla extract
  • 23 cup all-purpose flour



  • Butter an 8”x8” baking dish and optionally line with parchment paper
  • Chop the chocolate

Make the batter

  • Melt the butter and chocolate over a pan with barely simmering water
    • when it’s about 80% melted, stir together until smooth
  • In a medium mixing bowl using an electric hand mixer
    • Add the eggs, sugar, salt and vanilla extract and whisk until ribbon stage
    • Add the chocolate and whisk on high speed for a few minutes
    • Add the flour and whisk on low speed until the flour just disappears
  • Transfer into the prepared baking dish and smooth out the top


  • Bake at 350F for about 35 minutes
    • a toothpick 2” from the edge should come out clean
  • Wait until completely cool before cutting