Put all the ingredients into the mixer and mix until the dough forms a ball. Place the ball on floured parchment paper and roll it out to a rectangular shape. Spread the marmalade on top and then close one side to the other to form a pocket, or triangle shape.
Bake in 180 degree Celsius oven for 35-40 minutes.
200 grams of flour
100 grams of sugar
120 grams of butter
1 egg
Pinch of salt
1 lemon peel, grated