- 2 teaspoons olive oil
- ¼ white onion, peeled and diced
- 1 clove
- Heat the olive oil in a medium sauté pan over medium heat. Add the onion and cook, stirring often, until it is soft but not brown. Add the garlic and cook 1 minute longer.
- Add 1 of the chipotles, the piloncillo, and the tomatoes. Cook, stirring often, until the tomatoes are soft and the sugar almost melted, about 3 minutes. Add the water, tomato sauce,