
This Walnut & Coffee Swiss Roll Recipe is easy to make and the perfect holiday bake. Inspired by Mary Berry and my German Biskuitrolle recipe.
Preheat the oven to 400°F (200°C) or 360°F (180°C fan). Line a 10 x 15-inch baking pan with baking paper. Whisk the eggs and sugar together for about 5 minutes until the mixture is light and fluffy. Gently fold in the flour, ( by hand) a pinch of salt, followed by the coffee paste, melted COOLED butter, and walnuts. Pour the mixture into the tin, spread evenly, and bake for 12-15 minutes until the sponge is lightly golden and springy to the touch.
Allow the sponge to cool a minute then turn it out onto a clean kitchen towel dusted with sugar. Roll it up like a Swiss roll, keeping the kitchen towel between the cake layers, and leave it to cool completely.
For the filling, mix the mascarpone with the vanilla, almond essence and sugar, then fold in the whipped cream. Carefully unroll the cooled sponge, spread the mascarpone mixture evenly, and sprinkle with walnuts. Roll the sponge back up (without the parchment this time). Dust with powdered sugar and serve in slices.