Ingredients

• 6 cups chopped, fresh broccoli florets
• 1 (10 3/4-oz) can condensed cream of mushroom soup
• ½ cup chicken stock
• ½ cup mayonnaise
• ½ cup sour cream
• 4 tbsp unsalted butter, .melted
• 2 eggs, lightly beaten
• 1 medium onion, finely diced
• 1 cup extra sharp cheddar,. grated
• ½ cup Gruyere, grated
• 2 tbsp cornstarch
• Salt & black pepper to taste

Topping

• 1 sleeve Ritz cracker, crushed
• 3 tbsp butter,. melted