In a small bowl, whisk together the chili powder blend, garlic granules, minced onion, cumin, arrowroot powder, and fine sea salt. This is a very important step - if you don’t whisk together the dry ingredients first, the arrowroot powder will clump up and won’t thicken the sauce properly.
Combine the dry ingredient blend, bouillon, water, and tomato sauce in a small skillet, stir to combine.
Bring to a light boil, then reduce to a simmer. Simmer for two minutes while stirring.