Go Back
how to make Broccoli Cheddar Gratin
Print

Broccoli Cheddar Gratin

Course Side Dish
Cuisine American, Southern
Keyword broccoli-cheddar-gratin, broccoli-cheese-recipes, brocoli-casserole
Prep Time 20 minutes
Cook Time 40 minutes
Total Time 1 hour
Servings 10 servings
Calories 340kcal
Author Melissa Sperka

Ingredients

  • 8 cups steamed broccoli florets [ Around 2 lb]
  • 8 Tbsp butter divided
  • 1 small sweet onion diced
  • 1/3 cup all purpose flour
  • 1 tsp dry mustard
  • 1 tsp garlic salt
  • black pepper to taste
  • 3 cups whole milk
  • 3 cups shredded sharp cheddar cheese divided
  • 2/3 cup panko bread crumbs
  • 1/4 cup grated Parmesan cheese
  • 1/4 tsp garlic salt

Instructions

  • Preheat the oven to 350°F. Spray a 11x7 inch baking dish with cooking spray. Set aside. (I used an oblong pan but any 2 quart baking dish will do)
  • Steam the broccoli, slightly under cooking. Cool.
  • Prepare Sauce: In a medium saucepan, melt 6 tablespoons of butter. Saute the minced onion in the butter for 2 minutes just until translucent.
  • Sprinkle the flour over the butter. Add the dry mustard , garlic salt and black pepper. Stir until it the flour is absorbed by the butter. Cook stirring constantly for 1 minute.
  • Gradually add the milk, whisking constantly over medium-high heat. When the sauce begins to boil, lower the heat and simmer gently for 5 minutes.
  • Remove from the heat and add 2 cup shredded cheddar cheese, reserving 1 cup for the top. Stir until the cheese has blended with the sauce.
  • Add the steamed broccoli and using a large spatula, gently mix until combined. Pour into the prepared baking dish and sprinkle the remaining 1 cup shredded cheddar cheese on top.
  • Melt the remaining 2 Tbsp melted butter and mix with 2/3 panko breadcrumbs, 1/4 grated Parmesan cheese and 1/4 tsp garlic salt. Sprinkle on top.
  • Bake for 35-40 minutes until golden and bubbly. Serve immediately.

Nutrition

Serving: 1serving | Calories: 340kcal | Carbohydrates: 18g | Protein: 15g | Fat: 24g | Saturated Fat: 15g | Trans Fat: 1g | Cholesterol: 69mg | Sodium: 707mg | Potassium: 419mg | Fiber: 3g | Sugar: 7g | Vitamin A: 1214IU | Vitamin C: 67mg | Calcium: 407mg | Iron: 1mg