1. Prepare the Crust:

1. In a large bowl, whisk together flour, baking powder, and salt.
2. Cut in the shortening until the mixture resembles coarse crumbs.
3. Gradually add warm water, stirring until a soft dough forms. Knead lightly on a floured surface for 2 minutes.
4. Cover the dough and let it rest for 20 minutes.
5. Roll out the dough to 1/4-inch thickness and cut into squares or triangles.
6. Heat oil in a deep skillet to 375°F (190°C). Fry dough pieces in batches until golden brown, about 1-2 minutes per side.
7. Drain on paper towels and immediately toss in a mixture of sugar and cinnamon while still warm.