In a large skillet, heat one tablespoon of olive oil over medium heat. Add onion, garlic, and a large pinch of salt and pepper. Cook, stirring occasionally, until onion and garlic are softened, but not browned, about 3 to 5 minutes. Move the onions and garlic off to the side of the pan, and add the cumin, chili powder, paprika, oregano, and cayenne. Let sizzle in the pan until they’re fragrant, about 1 minute. Stir spices into onion and garlic mixture until the spices evenly coat the onion and garlic.