Zagorski Štrukli (Croatian Cheese and Spinach Strudel)

Method

1. Preheat oven to 200°C (390°F). Roll out the puff pastry on a floured surface and cut into rectangles.
2. In a pan, sauté the chopped onion until translucent. Add the washed and chopped spinach, cooking until wilted. Mix with grated cheese, salt, and pepper.
3. Place the filling on each pastry rectangle, then fold the dough over to form a triangle.
4. Beat the egg and brush the top of each strudel with the egg wash. Brush with butter.
5. Bake for 20-25 minutes until golden brown and crispy.