Add sauce and seasonings to slow cooker: Add the honey, chopped chipotle peppers, adobo sauce, tomato paste, vinegar/lime juice, chicken broth, garlic, smoked paprika, chipotle chili powder, cumin, onion powder, ancho chili powder, salt, pepper, and olive oil to the slow cooker. Whisk to combine.
2 to 2½ lbs. boneless skinless chicken breasts, 1/2 cup honey, 2-3 chipotle peppers in adobo sauce, 1 Tbsp. adobo sauce, 2 Tbsp. tomato paste or ketchup, 2 Tbsp. apple cider vinegar or lime juice, 3 cloves garlic, 1 tsp. smoked paprika, 1 tsp. chipotle chili powder, 1 tsp. ground cumin, 1 tsp. onion powder, 1 tsp. ancho chili powder, 1 tsp. salt, 1/2 tsp. black pepper, 1 Tbsp. olive oil, 1 cup chicken broth