Whisk together the chicken broth, tomato paste, chopped chipotle peppers, honey, lime juice, kosher salt, onion powder, garlic powder, cumin and oregano in a 6-quart slow cooker. Stir in the diced onion and minced garlic.
1 cup (240 ml) low-sodium chicken broth, 1 (6 oz /170 g) can tomato paste, 2-4 chipotle peppers in adobo sauce, 2 tbsps (42 g) honey, juice of one lime, 1 tbsp (9 g) kosher salt, 1 tsp (2 g) onion powder, 1 tsp (3 g) garlic powder, 1 tsp (2 g) ground cumin, ½ tsp (0.5 g) dried oregano leaves, 1 large yellow onion, 4 cloves garlic