Prepare the necessary products. Turn on the oven at 180°C.
Beat until you get a homogeneous mass.
Slice the lemon and remove the seeds.
Place the chopped lemon in a blender bowl and add sugar.
Grind the lemon and sugar until smooth.
Cut the dough into squares. Place the lemon and sugar filling in the center of the squares.
Fold the puff pastries into a triangle and secure the edges with a fork.
Brush the puff pastries with the egg mixture.
Bake the lemon puffs in a preheated oven for 10-15 minutes.
Let the puff pastries cool slightly and serve.
Garnish with thin slices of lemon and powdered sugar.