Keto Slow Cooker Butter Chicken

Ingredients

• 3 tablespoons unsalted butter
• 1 medium (110g) yellow onion, chopped
• 2 tablespoons grated fresh ginger
• 1 ½ teaspoons minced or pressed garlic
• 1 tablespoon garam masala spice blend
• 1 tablespoon tomato paste
• ¾ teaspoon salt
• ¾ cup chicken broth
• ½ cup canned crushed tomatoes
• 1 tablespoon lime juice
• ½ teaspoon lime zest
• 1 packet stevia extract sweetener
• 2 pounds raw boneless, skinless chicken thighs
• ½ cup heavy cream
• 2 tablespoons cilantro leaves
• 4 ½ cups frozen cauliflower rice