Slow Cooker Turkey Breast

Name: Slow Cooker Turkey Breast
Prep time: 15 min
Cook time: 6 h
Total time: 6 h 30 min
Yield: 6-8
Ingredients: Ingredients; 3-4 lb boneless turkey breast, skin removed; 2 tablespoons olive oil; 1 large onion, sliced; 3 cloves garlic, minced; 1 cup chicken broth; 2 tablespoons butter, melted; 1 teaspoon dried thyme; 1 teaspoon dried rosemary; 1 teaspoon dried sage; 1 teaspoon paprika; 1 teaspoon salt; 1/2 teaspoon black pepper; 1/2 teaspoon garlic powder; 1/4 teaspoon cayenne pepper (optional); 2 bay leaves; 2 tablespoons cornstarch mixed with 3 tablespoons cold water (for gravy, optional)