Preheat your oven to 400°F (200°C).
In a large bowl, combine the flour, baking powder, and salt.
Add water and olive oil to the dry mixture and stir until a dough forms.
Knead the dough on a floured surface for about 5 minutes until smooth.
Roll out the dough into a large rectangle about 1/4 inch thick.
Cut the dough into smaller squares, approximately 4x4 inches.
Place a tablespoon of sauce, followed by a handful of cheese and toppings on one half of each square.
Fold the dough over to form a pocket and crimp the edges to seal.
Arrange the pockets on a baking sheet lined with parchment paper.
Bake for 15-20 minutes or until golden brown and crispy.
Let cool slightly before serving – this will make the filling safer to eat.