Preparation

Step 1: Prepare the Cake Batter

1. Preheat your oven to 350°F (175°C). Grease a jelly roll pan and line it with parchment paper, ensuring the edges are covered.
2. In a medium bowl, whisk together the all-purpose flour, cocoa powder, baking powder, and salt. Set aside.
3. In a separate large bowl, beat the eggs and granulated sugar using a hand or stand mixer on high speed until the mixture becomes pale and fluffy, about 3-5 minutes.
4. Gradually add the vegetable oil and vanilla extract to the egg mixture, blending until smooth.

Step 2: Combine and Bake

1. Gently fold the dry ingredients into the wet mixture in batches, being careful not to overmix. The batter should be smooth and free of lumps.
2. Pour the batter evenly into the prepared jelly roll pan, spreading it with a spatula to create a uniform layer.
3. Bake for 12 minutes, or until the cake springs back when lightly touched in the center.

Step 3: Roll the Cake

1. Remove the cake from the oven and allow it to cool for about 2 minutes.
2. While still warm, place a clean kitchen towel over the top of the cake and gently roll it, starting from the shorter side. Rolling the cake while warm prevents cracks.
3. Let the rolled cake cool completely in its towel at room temperature.

Step 4: Prepare the Filling

1. In a medium mixing bowl, beat the creamy peanut butter, heavy cream, and powdered sugar together until the mixture is light and fluffy.
2. Fold in the mini chocolate chips for added texture and flavor.

Step 5: Fill and Roll the Cake

1. Carefully unroll the cooled cake and spread the peanut butter filling evenly across the surface, leaving a small border around the edges.
2. Re-roll the cake tightly without the towel, ensuring the filling stays inside.
3. Wrap the roll cake in plastic wrap and refrigerate it for at least 1 hour to set.

Step 6: Decorate and Serve

1. Before serving, unwrap the cake and place it on a serving platter.
2. Sprinkle the chopped Reese’s Peanut Butter Cups on top for garnish. You can also add a drizzle of chocolate sauce for extra indulgence.