Warm oil in a large skillet over medium heat. Add onion and garlic and sauté until softened, about 3 minutes. Turn heat up to medium-high, stir in turkey, salt and chili powder and cook, stirring to break up meat, until turkey loses its pink color, about 5 minutes.
Transfer mixture to slow cooker. Stir in brown sugar, tomato sauce, ketchup, 1/4 cup water and Tabasco. Cover and cook on low until bubbling and flavors have developed, 3 to 4 hours. Serve on buns with pickles or pickle relish, if desired.
Pretty good and easy to prepare. Instead of crockpot I just let it simmer on the stove for 2 hours. I added 1/2 tsp cumin, as it really didn't taste of much. Next time I might add green pepper or something else to give it more taste.