This Slow Cooker Spinach Artichoke Dip is definitely one of the best appetizers you can make! It's creamy, cheesy, and packed with flavor. Serve it at your next party as an appetizer or just make it for yourself when you need a comforting snack.
– 1 (16 oz.) bag baby spinach (Stems Removed) – 3 tbsp butter – ¼ cup yellow onion (minced) – 2 tsp garlic (minced) – 1 tsp black pepper – 2 tbsp cornstarch – 1½ cups milk – 1 tbsp Worcestershire sauce – 1 cup sour cream – 2 cups mozzarella cheese – 1¼ cups Parmesan cheese – 1 (12 oz.) can artichoke hearts