Place the tomato sauce, coconut oil, onion, garlic, ginger, spices, and salt in the slow cooker and stir to combine.
15 ounces tomato sauce, 1 yellow onion, 1/4 cup coconut oil, 3 cloves garlic, 1 1/2 tablespoons cumin, 1/2 tablespoon salt, 1/2 tablespoon turmeric, 2 teaspoons fresh ginger, 1/2 teaspoon cayenne pepper, 1/2 teaspoon paprika, 1/2 teaspoon pepper