Step 4
To make sauce, blend the stewed tomatoes in a blender until pureed, and set aside. Heat 1 tablespoon of vegetable oil in a saucepan over medium heat, and cook and stir the onion until translucent, about 5 minutes. Add the garlic, cook and stir for about 30 seconds, and pour in the pureed tomatoes, chicken broth, vinegar, oregano, cumin, black pepper, hot pepper sauce, and cinnamon. Reduce to medium-low, and simmer the sauce until reduced by half and thickened, about 20 minutes, stirring often.