1 small onion, chopped (about a cup)
Vegetable oil - grapeseed or olive
2 small cloves garlic, minced
1 14.5-ounce can tomatoes, preferably fire-roasted if you can get it
2 Tbsp red chili powder
1 teaspoon sugar
1/2 cup to a cup of water
12 corn tortillas
Grapeseed oil, peanut oil or canola oil - a high smoke point vegetable oil
2-3 cups of cooked chicken, shredded or chopped
Salt
2 cups grated cheese (about 1/3 lb)