Paula Deen's Slow Cooker Macaroni and Cheese

INGREDIENTS

• 2 cups uncooked elbow macaroni
• 4 tablespoons butter, cut into pieces
• 2 1/2 cups about 10 ounces grated sharp cheddar cheese
• 3 eggs, beaten
• 1/2 cup sour cream
• 1 (10 3/4 ounce) can condensed cheddar cheese soup
• 1/2 teaspoon salt
• 1 cup whole milk
• 1/2 teaspoon dry mustard
• 1/2 teaspoon black pepper