Slow Cooker Garlic Sweet Potato Mash

Bahan-bahan (5 porsi)

• 2 lbs 4 medium sweet potatoes, peeled & cubed into 1-inch pieces
• 1 tbsp butter
• 3 cloves garlic (crushed)
• 1/2 cup 1% milk
• 2 tbsp light sour cream
• salt and fresh cracked ground pepper (to taste)