In a large bowl, combine the flour, salt, and sugar.

Pour in the melted butter and cold water, mixing until the dough comes together.

Knead the dough on a floured surface for about 5 minutes until smooth.

Wrap the dough in plastic wrap and refrigerate for at least 30 minutes.

In a food processor, blend the ricotta, powdered sugar, vanilla, orange zest, and cinnamon until smooth.

On a floured surface, roll out the chilled dough into a thin sheet.

Cut the dough into rounds and place a small spoonful of filling in the center.

Fold the dough over the filling, sealing the edges.

Preheat the oven and bake the pastries until golden brown.