For a thicker taco seasoning sauce: Add 2 tablespoons flour, 1 tablespoon cornstarch, or 1 tablespoon arrowroot powder to the taco seasoning blend. Once the meat is browned, add the seasoning and ¾ cups of water, stir and bring to a boil. Reduce heat to a simmer and cook for 5 minutes, stirring occasionally until the sauce thickens.