Ingredients
Equipment
Method
- Preheat your oven to 350°F (175°C). Line a baking sheet with parchment paper and set aside.
- In a large mixing bowl, whisk together the eggs and half of the sugar until the mixture is light, fluffy, and has doubled in volume, about 3-4 minutes. This creates a fluffy base and incorporates air for a tender sponge.
- Sift the flour and cream of tartar into the egg mixture, gently folding in with a spatula until just combined. Be careful not to deflate the batter, maintaining its airy structure.
- Gently pour the batter into the prepared baking sheet, spreading it evenly with an offset spatula to fill all corners. The batter should be smooth and level.
- Bake the sponge in the preheated oven for about 12-15 minutes, or until it springs back when lightly touched and is golden around the edges. The cake should be soft but cooked through.
- Once baked, remove from oven and immediately invert the sponge onto a clean kitchen towel dusted with powdered sugar or cocoa powder. Carefully peel away the parchment paper while the cake is still warm.
- Spread the peanut butter evenly over the surface of the warm sponge, leaving a small border along the edges to prevent overflow when rolling. Sprinkle the melted chocolate chips over the peanut butter layer for added richness.
- Using the towel to lift, gently roll the sponge from one short end into a tight spiral, applying even pressure as you roll to form a seamless log. Let it rest seam-side down for 10-15 minutes to help set the shape.
- Unroll the cake carefully and transfer it to a serving plate, then re-roll gently to tighten the spiral if needed. Optional: drizzle additional melted chocolate over the top for decoration.
- Slice the roll into individual pieces using a serrated knife, revealing the beautiful spiral inside. Serve immediately or refrigerate for later to enjoy a moist, flavorful treat.
- Enjoy this decadent roll cake that combines the nostalgic flavor of peanut butter cups with the elegance of a rolled sponge, perfect for sharing at special occasions or as a comforting dessert.
Notes
For a richer chocolate flavor, increase the amount of melted chocolate chips in the filling. Store leftovers in an airtight container in the refrigerator for up to 2 days.
