Chipotle Tip: I de-seed the chipotles as much as possible (yes, it's a little messy, but those seeds can be toooo spicy), and then puree the chipotles in adobo to make it ready-to-use and easy-to-measure. It can be stored this way for a little while in the fridge or freezer.
Fresh Simmered Option: Heat 1 tablespoon olive oil in a skillet over medium-low heat. Add ¼ cup minced onion and saute for a few minutes, or until soft. Add the garlic cloves and sate for 1 minute more. Whisk in the remaining ingredients, omitting the onion powder, and bring to a boil. Immediately reduce to a simmer, and let simmer, uncovered, for about 15 minutes. If it thickens to much for your desires, add a little water, as needed.