2 tablespoons olive oil
1 large sweet onion, finely chopped
2 tablespoons chili powder
1 teaspoon dried oregano
1 teaspoon dried tarragon
1 teaspoon ground cumin
3/4 teaspoon salt
1/2 teaspoon ground cinnamon
1/2 teaspoon pepper
3 garlic cloves, minced
2 tablespoons tequila, optional
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