To make the gravy, heat the oil in a skillet over medium-high heat. Stir in the flour and continue stirring for 3 to 4 minutes, or until it makes a light brown roux.
Add the black pepper, salt, powdered garlic, ground cumin, dried oregano, and chili powder and continue to cook for 1 minute, constantly stirring and blending ingredients. Add broth or water, mixing and stirring until the sauce thickens. Turn heat to low and let sauce simmer for 15 minutes. Add water to adjust the thickness.
To make the enchiladas, preheat the oven to 450° F and grease a large baking dish.
Pour the oil in a small skillet, and heat the tortillas one at a time. Keep them wrapped in a cloth until all 8 are heated. Pour 1/2 cup of chili gravy in a baking pan.
Take a tortilla, put 1/4 cup of cheese and 1 tablespoon of onion in the center and roll it. Place rolled tortilla in baking dish, seam side down. Continue with remaining tortillas.
Take remaining chili gravy, and pour it over the rolled tortillas. Sprinkle remaining cheese and onions on top. Bake for 10 minutes or until sauce is bubbly and cheese is melted.
Cheese enchiladas with chili gravy | www.homesicktexan.com