Ingredients:
- 115g unsalted butter, softened
- 125g creamy peanut butter
- 200g granulated sugar
- 2 large eggs
- 5ml vanilla extract
- 250g all-purpose flour
- 12g baking powder
- 3g salt
- 240ml whole milk
- 115g unsalted butter, softened (for icing)
- 125g creamy peanut butter (for icing)
- 240g powdered sugar
- 45ml heavy cream
- 5ml vanilla extract (for icing)
Instructions:
- Preheat your oven to 325°F (165°C) and grease your baking pan.
- Using your mixer, cream together the softened butter and peanut butter until the mixture is pale and fluffy.
- Gradually beat in the sugar and eggs one at a time, stirring in the vanilla until the batter looks smooth and glossy.
- Sift in the flour, baking powder, and salt. Slowly pour in the milk while mixing on low speed until no streaks of flour remain.
- Pour the batter into the prepared pan, smoothing the top with a spatula.
- Bake for 35–40 minutes until the edges are a light mahogany-colored gold and a toothpick inserted in the center comes out clean.
- Allow the cake to cool completely in the pan on a wire rack before frosting.
- Beat the frosting butter and peanut butter together until completely incorporated.
- Add powdered sugar one cup at a time on low speed, then increase speed to medium.
- Slowly drizzle in the heavy cream and vanilla, beating until the frosting reaches a silky, spreadable consistency.
- Spread the frosting generously over the cooled cake using an offset spatula.