01 -
Preheat your oven to 375°F (190°C) and prepare a jelly roll pan with parchment paper.
02 -
In one bowl, whisk together flour, baking powder, salt, and lemon zest.
03 -
In another bowl, beat eggs and sugar until pale; combine with dry ingredients.
04 -
Spread the batter in the prepared pan and bake for 12-15 minutes until lightly golden.
05 -
Cool the cake on a towel dusted with powdered sugar while preparing the filling.
06 -
Mix cream cheese, sugar, lemon juice, and mashed blackberries.
07 -
Spread filling onto the cooled cake, roll up using the towel, wrap tightly in plastic wrap, and refrigerate before serving.