Best Spinach Artichoke Dip Recipe

Ingredients

• 1 (8-oz.) block cream cheese, softened
• 3/4 c. mayonnaise
• 3/4 c. sour cream
• 1 c. freshly grated Parmesan
• 1 c. shredded white cheddar, plus more for topping
• 1/2 c. shredded Gruyère
• 1 (14-oz.) can artichoke hearts, drained and chopped
• 1 (10-oz.) package frozen spinach, defrosted and chopped
• 2 cloves garlic, minced
• 1 tsp. lemon zest
• 1/2 tsp. red pepper flakes
• Kosher salt
• Freshly ground black pepper
• Tortilla chips, for serving