French Onion Potato Casserole with Crispy Topping - Zest Plate

Ingredients

• 1 bag frozen diced hash browns, thawed and drained
• 2 cups sharp cheddar cheese, shredded
• 1 cup sour cream or plain Greek yogurt
• 4 tablespoons unsalted butter, melted
• 1 medium yellow onion, diced
• 2 cloves garlic, minced
• 2 tablespoons all-purpose flour
• 1 cup chicken broth
• 1 cup whole milk
• 2 medium yellow onions, sliced thinly
• Vegetable or canola oil for frying