Mix all ingredients except for the extra egg, pastry and sesame seeds.

Cut pastry sheets in half to form 12 rectangles and lay filling down one side. Roll up (paint a little of the beaten egg on the edge of the pastry, which will become your seam, before fully rolling).

Cut the roll into 5 portions and place on a lined cookie sheet, seam at bottom. Paint with beaten egg and sprinkle with sesame seeds.

Bake in a hot oven (so the pastry puffs) until golden and crispy.

Serve with tomato ketchup.