Next, you’ll want to add the melted butter, milk, and vanilla extract to the mixture. Gently combine until everything is well incorporated. Pour the batter into your prepared baking tray and smooth it out into an even layer. Bake for 10-12 minutes or until the sponge is lightly golden and springs back when touched. As it bakes, your kitchen will fill with the most delightful aroma!
Once baked, remove the cake from the oven and let it cool for a couple of minutes. Then, while it’s still warm, turn the cake out onto a clean dish towel sprinkled lightly with sugar. Carefully peel off the parchment paper (it may take a bit of patience). Now, roll the cake up tightly with the towel starting from one short end. Allow it to cool completely while rolled up. This will help to maintain the shape.
While the cake is cooling, let’s get started on the caramel! In a saucepan, heat the granulated sugar over medium heat, stirring occasionally until it melts down to a golden-brown caramel. Remove it from the heat and slowly stir in the heavy cream (be careful, it may bubble up!). Add a pinch of sea salt if desired. Allow the caramel to cool slightly before unrolling the cake and spreading the caramel evenly across the surface. Roll it back up gently, slice, and drizzle with more caramel before serving!
Pro Tips for Best Results
I tested this recipe three ways—using different sugars and even substituting out some butter for oil. What I learned is that using granulated sugar yields a more stable sponge cake that holds its shape beautifully. The eggs need to be at room temperature for the best volume as they whip up!
Another tip I have is all about caramel! If you want a silky consistency, be patient when melting the sugar. Too high of a heat can lead to burning and bitterness. I once rushed this part out of excitement, and it didn’t turn out well!
Lastly, always remember that practice makes perfect. If your first roll isn’t as tight or even, don’t worry! With each attempt, you’ll find your rhythm, and soon you’ll be rolling like a pro in no time!
Common Mistakes to Avoid
One common mistake is thinking you can skip the step of rolling the cake while it’s still warm. This is crucial for creating a nice shape and avoiding cracks. I’ve made this error before, and peeling the cake apart later was a real mess. (See the next page below to continue…)