01 -
First things first, preheat that oven to 375°F (190°C) and line a 15x10-inch jelly roll pan with parchment paper, letting it hang over the sides a bit. Grease the parchment, too. This is where I always make sure the parchment is perfectly flat, no bumps, or your cake will have weird ridges. Whisk your flour, baking powder, and salt together in a small bowl. Set aside. You want everything ready, trust me, this cake moves fast!
02 -
In a large bowl, beat your egg yolks with half the sugar until they're pale and thick. Then, in a separate, absolutely clean bowl (seriously, no grease!), whip your egg whites until they're foamy. Gradually add the remaining sugar and beat until stiff, glossy peaks form. This meringue is what gives the cake its airy texture, so don't under-whip it. I've definitely rushed this step before, and the cake was a bit sad, oops.
03 -
Fold the yolk mixture into the egg whites gently, trying not to deflate all that lovely air you just whipped in. Then, gradually fold in your dry ingredients until just combined. Overmixing? That’s a no-go, it’ll make your cake tough. Pour the batter into your prepared pan, spreading it evenly. It'll smell sweet and eggy, a promising start for your Christmas Peppermint Roll Cake.
04 -
Bake for about 10-12 minutes, or until the cake springs back when lightly touched. While it’s baking, lay out a clean kitchen towel and dust it generously with powdered sugar. As soon as the cake comes out of the oven, immediately invert it onto the sugared towel. Peel off the parchment paper carefully, then, starting from a short end, roll the warm cake and towel together. Let it cool completely like this, it's crucial for preventing cracks later.
05 -
While the cake cools, make your filling. In a large bowl, beat the heavy cream, powdered sugar, and peppermint extract until stiff peaks form. Taste it! Does it need more mint? More sugar? This is your chance to adjust. I usually add a little extra peppermint because I love that zing, but you do you. This creamy, dreamy filling is what makes this Christmas Peppermint Roll Cake truly special.
06 -
Once the cake is completely cool, gently unroll it. Don’t panic if it looks a little flat or has a few tiny cracks, we're covering those up! Spread the peppermint cream filling evenly over the cake, leaving a small border around the edges. Sprinkle about half of your crushed peppermint candies over the filling. Now, carefully re-roll the cake, without the towel this time. Wrap it tightly in plastic wrap and chill for at least 2 hours, or honestly, overnight is even better!