Slow Cooker Butter Chicken

Name: Slow-Cooker Butter Chicken
Ingredients: 3 tablespoons butter; 1 tablespoon vegetable oil; 3 lb boneless skinless chicken thighs, cut into 2-inch pieces; 1 medium yellow onion, diced; 5 cloves garlic, finely chopped; 3 tablespoons finely chopped peeled gingerroot; 2 tablespoons garam masala; 1/4 cup canned Muir Glen™ organic tomato paste; 3/4 teaspoon salt; 1/2 cup Progresso™ chicken broth (from 32-oz carton); 1/2 cup heavy whipping cream; 1/4 cup cilantro leaves, stems removed