Instructions:
1. Preheat the Oven:
Preheat your oven to 350°F (175°C). Line a 15×10-inch jelly roll pan with parchment paper and lightly grease the paper.
2. Make the Cake:
- In a large mixing bowl, whisk together the eggs and sugar until thick and pale.
- Add the vanilla extract and mix to combine.
- In a separate bowl, sift together the flour, cocoa powder, baking powder, and salt.
- Gradually add the dry ingredients to the egg mixture, alternating with milk, mixing gently to combine.
- Fold in the melted butter until the batter is smooth.
3. Bake the Cake:
- Pour the batter into the prepared jelly roll pan, spreading it evenly with a spatula.
- Bake for 10–12 minutes or until a toothpick inserted into the center comes out clean. Be careful not to overbake.
- While the cake is baking, prepare a clean kitchen towel by sprinkling it with powdered sugar (about 1–2 tbsp).
- As soon as the cake is done, remove it from the oven and carefully turn it out onto the prepared towel. Peel off the parchment paper.
- Roll the cake up with the towel from one short end to the other. Allow it to cool completely in the rolled-up position.
4. Prepare the Peanut Butter Filling:
- In a medium bowl, beat together the peanut butter, powdered sugar, softened butter, and vanilla extract until smooth and creamy.
- Add heavy cream a tablespoon at a time until the filling reaches a spreadable consistency.
5. Assemble the Cake Roll:
- Once the cake has cooled completely, gently unroll it and remove the towel.
- Spread the peanut butter filling evenly over the surface of the cake, leaving a small border around the edges.
- Carefully roll the cake back up, starting from the same short end. Don’t worry if the cake cracks slightly—it will still roll up beautifully.
6. Prepare the Chocolate Drizzle:
- In a small saucepan, melt the chocolate chips and butter together over low heat, stirring constantly until smooth.
- Drizzle the melted chocolate over the top of the rolled cake, allowing it to drip down the sides.
7. Chill and Serve:
- Place the cake roll in the refrigerator for at least 30 minutes to set and allow the filling to firm up.
- Slice the cake into 1-inch pieces and serve.