Ingredients:

  • 1.5 cups (190g) all-purpose flour
  • 1 cup (200g) granulated sugar
  • 1/3 cup (30g) unsweetened cocoa powder
  • 1 tsp (5g) baking powder
  • 0.5 tsp (3g) salt
  • 1 cup (240ml) whole milk
  • 0.5 cup (115g) unsalted butter, melted
  • 2 large eggs
  • 1 tsp (5ml) vanilla extract
  • 0.5 cup (125g) creamy peanut butter
  • 0.25 cup (60g) creamy peanut butter
  • 0.5 cup (60g) powdered sugar
  • 1.5 tbsp (22ml) milk

Instructions:

  1. Whisk together the flour, sugar, cocoa powder, baking powder, and salt in a large bowl.
  2. Stir in the melted butter, milk, eggs, and vanilla extract until the batter is smooth and mahogany-colored, ensuring no large lumps of flour remain.
  3. Pour the chocolate batter into a greased slow cooker.
  4. Drop 0.5 cup (about 8 tablespoons) of peanut butter in spoonfuls across the top of the batter.
  5. Using a knife or spatula, gently swirl the peanut butter slightly into the batter without overmixing to preserve the lava effect.
  6. Cover and cook on High for 2 hours until the edges are firm and pulling away from the sides, while the center remains slightly springy.
  7. Optional: Mix the additional peanut butter, powdered sugar, and milk together to create a glaze and drizzle over the finished cake.