Start by making the Green Sauce: Blend all the sauce ingredients until combined. Chill in the refrigerator.
Prepare the Empanada Dough: Mix flour, salt, and 1 tablespoon of oil in a bowl. Gradually add water until you have a coarse mixture. Shape into a disk, cover with plastic wrap, and chill for 30 minutes.
For the Empanada Filling: Combine spices in a bowl. Cook ground beef with garlic and half of the spice mix. Remove beef, then cook sweet potato with the remaining spices until tender. Combine with beef, onion, cilantro, and vinegar.
Assemble the empanadas: Roll out the dough, cut into circles, add filling, seal edges, and brush with oil.
Air Fryer Method: Cook at 400°F for 6-7 minutes, flipping halfway.
Baking Method: Bake at 400°F for 25 minutes, flipping halfway.
Serve the empanadas with the herb sauce and enjoy!