Gather all your ingredients so that you everything close at hand on the counter or table.
Prepare the Ingredients
Using a sharp knife and cutting board, mince 1 medium sweet onion and 1 clove garlic.
Make the Enchilada Sauce
In a small saucepan, combine 1/4 cup vegetable oil, minced onion and garlic and 3 oz tomato paste. Simmer for 3 minutes, stirring often.
Add 2 teaspoons chili powder, 1 teaspoon cider vinegar, 1/2 teaspoon dried oregano, 1/2 teaspoon kosher salt, 1/2 teaspoon freshly ground black pepper, and 1/8 teaspoon red pepper flakes. Stir to combine so that all the flavors are mixed in.
Mix in 2 cups chicken broth. Whisk together to create a smooth sauce. Bring to boil. Reduce the heat and simmer for 15 minutes uncovered.
Use in your favorite Enchilada Recipe. This recipes makes approximately 2 1/2 cups.
Notes
*This recipe has been updated to use less tomato paste (from 10 oz to 3 oz) and no granulated sugar. (4/20/26)