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:
- Whisk together the flour, sugar, cocoa powder, baking powder, and salt in a large bowl.
- 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.
- Pour the chocolate batter into a greased slow cooker.
- Drop 0.5 cup (about 8 tablespoons) of peanut butter in spoonfuls across the top of the batter.
- Using a knife or spatula, gently swirl the peanut butter slightly into the batter without overmixing to preserve the lava effect.
- 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.
- Optional: Mix the additional peanut butter, powdered sugar, and milk together to create a glaze and drizzle over the finished cake.