Mix flour and baking powder, set to side

In a bowl, cream eggs, sugar and condensed milk til frothy and combined well

Stir in dry ingredients, and followed with melted butter

Pour batter onto parchment lined 20×20 cm square pan

Bake cake at preheated 400-410 F for 10 mins, then flip the pan onto a greased parchment line paper

Peel parchment line from cake and spread jam

Roll cake slowly and carefully so it won’t crack

Chill in the fridge for 2 H, unroll, slice and serve