Prepare the Dough:
In a mixing bowl, whisk together the flour, baking powder, salt, and sugar.
Add the melted butter and warm water (or milk) gradually, mixing until a soft dough forms.
Knead the Dough:
Turn the dough onto a floured surface and knead for 2–3 minutes until smooth. Cover the dough with a damp towel and let it rest for 20–30 minutes.
Roll and Cut:
Roll the dough out to about ¼-inch thickness.
Cut into 3–4 inch squares, triangles, or your preferred shape using a knife or pizza cutter.
Heat the Oil:
In a deep fryer or saucepan, heat about 2 inches of oil to 375°F (190°C).
Fry the Sopapillas:
Fry a few pieces of dough at a time, being careful not to overcrowd the pan. Cook for 1–2 minutes on each side or until golden and puffy.
Use a slotted spoon to transfer the sopapillas to a plate lined with paper towels to drain excess oil.
Serve:
Serve warm, drizzled with honey, dusted with powdered sugar, or sprinkled with cinnamon sugar.
