In a large mixing bowl, add the flour, baking powder, salt and cinnamon and mix to integrate. Add the butter to the flour mixture and combine with your fingers.
Add the sugar, vanilla extract and mix. Add water, using your clean hands, mix well, until all dry ingredients are incorporated.
Using your clean hands, mix well, until all dry ingredients are incorporated and the dough begins to come together and form a smooth ball.
On a lightly floured surface, roll each dough piece into a rough circle, until thin and almost transparent. On a hot skillet or comal, pre-cook the disks.
Fry until both sides are golden brown. Remove the fried buñuelos and let them drain the excess oil on paper towels.
While they’re still warm, coat them in a mixture of sugar and cinnamon.