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Broccoli With Mornay Sauce: A Classic Comfort Dish

My grandmother, bless her heart, wasn’t exactly known for her adventurous palate. But there was one dish she made that I always looked forward to: broccoli with mornay sauce. It wasn’t just the creamy, cheesy sauce blanketing the tender-crisp broccoli florets. It was the way the aroma filled her cozy kitchen, the warmth it brought on chilly evenings, and the feeling of being utterly loved as she served up a generous portion. This simple yet elegant dish holds a special place in my heart, a reminder of family, comfort, and the joy of sharing a delicious meal.

Recipe Overview

Prep Time: 15 minutes
Cook Time: 30-40 minutes
Total Time: 45-55 minutes
Servings: 6
Yield: 1 Casserole
Dietary Type: Vegetarian

Ingredients

1 1/2 lbs broccoli, cut into 2 inch flowerets (1 bunch)
1/2 cup finely chopped onion
2 tablespoons butter or 2 tablespoons margarine
3 tablespoons flour
2 cups milk
1/4 cup grated Swiss cheese
1/2 teaspoon salt
1/8 teaspoon white pepper
1 dash nutmeg
1/4 cup grated Parmesan cheese
1/4 cup fine dry white bread crumbs
2 tablespoons melted butter or 2 tablespoons melted margarine

Equipment Needed

Medium saucepan
Whisk
1 to 1 1/2 quart casserole dish
Colander

Instructions

Begin by preparing the broccoli. Bring a large pot of salted water to a rolling boil. Add the broccoli flowerets and cook for 5 minutes, or until they are almost tender, but still retain a slight bite.
Immediately refresh the cooked broccoli under cold running water to stop the cooking process and preserve its vibrant green color. This step is crucial for preventing the broccoli from becoming mushy. Drain the broccoli thoroughly and set aside.
In a medium saucepan, melt 2 tablespoons of butter (or margarine) over medium heat. Add the finely chopped onion and sauté for about 3 minutes, or until the onion is softened and translucent. Be careful not to brown the onion.
Sprinkle 3 tablespoons of flour over the sautéed onion and butter. Stir constantly with a whisk over low heat for 1 minute to create a roux. This will help thicken the mornay sauce. Ensure the flour is fully incorporated and there are no lumps.
Gradually add 2 cups of milk to the roux, whisking constantly to prevent lumps from forming. Continue whisking until the mixture is smooth.
Cook the sauce over medium-high heat, whisking constantly for about 5 minutes. The mixture will gradually thicken into a velvety sauce.
Remove the saucepan from the heat and stir in the 1/4 cup of grated Swiss cheese, 1/2 teaspoon of salt, 1/8 teaspoon of white pepper, and a dash of nutmeg. Stir until the cheese is completely melted and the sauce is smooth and creamy. Taste and adjust seasoning as needed.
Coat the bottom of a 1 to 1 1/2 quart casserole dish with a portion of the mornay sauce. This will prevent the broccoli from sticking to the bottom of the dish.
Arrange the cooked broccoli flowerets evenly over the sauce in the casserole dish.
Pour the remaining mornay sauce generously over the broccoli, ensuring that all the florets are well coated.
In a small bowl, combine the 1/4 cup of grated Parmesan cheese and 1/4 cup of fine dry white bread crumbs.
Sprinkle the Parmesan cheese and bread crumb mixture evenly over the top of the casserole. This will create a golden-brown and slightly crispy crust.
Drizzle the 2 tablespoons of melted butter (or margarine) evenly over the top of the casserole. This will help the topping brown nicely and add a rich flavor.
Bake the casserole, uncovered, in a preheated oven at 375°F (190°C) for 20 to 24 minutes, or until the top is lightly browned and the sauce is bubbly.
Remove from oven and let stand for 5 minutes before serving.

Expert Tips & Tricks

For an extra layer of flavor, consider adding a clove of minced garlic to the onion while sautéing.
If you want a richer sauce, use whole milk or even half-and-half instead of regular milk.
To prevent the sauce from scorching, whisk it frequently while it’s cooking.
If your sauce is too thick, add a little more milk until it reaches the desired consistency. If it’s too thin, continue cooking it for a few more minutes, whisking constantly, until it thickens.
The broccoli can be blanched and refreshed ahead of time and kept in the refrigerator for up to 24 hours. The mornay sauce can also be made a day ahead and reheated gently before assembling the casserole.
For a slight twist, try adding a pinch of cayenne pepper to the sauce for a subtle kick.

Serving & Storage Suggestions

This Broccoli with Mornay Sauce is best served hot, straight from the oven. It makes a wonderful side dish for roasted chicken, grilled steak, or baked ham. You can also serve it as a vegetarian main course with a side salad and crusty bread. To garnish, sprinkle with a little extra Parmesan cheese or a few fresh parsley leaves.

Leftovers can be stored in an airtight container in the refrigerator for up to 3 days. To reheat, bake in a preheated oven at 350°F (175°C) until heated through. You can also microwave it, but the topping may not be as crispy.

Nutritional Information

Nutrient	Amount per Serving	% Daily Value
Calories	347 kcal	N/A
Calories from Fat	186 kcal	N/A
Total Fat	20.7 g	31%
Saturated Fat	12.5 g	62%
Cholesterol	59.3 mg	19%
Sodium	647.1 mg	26%
Total Carbohydrate	29 g	9%
Dietary Fiber	5.2 g	20%
Sugars	4.3 g	N/A
Protein	14.8 g	29%

Variations & Substitutions

Gluten-Free: Use a gluten-free all-purpose flour blend in place of the regular flour. Make sure the breadcrumbs are also gluten-free.
Dairy-Free: Substitute the butter with olive oil or a dairy-free butter alternative. Use a plant-based milk alternative like almond milk or oat milk. Replace the Swiss and Parmesan cheese with dairy-free cheese shreds. Note that the flavor will be slightly different.
Different Vegetables: Try this recipe with other vegetables, such as cauliflower, asparagus, or green beans.
Spicy Kick: Add a pinch of red pepper flakes to the mornay sauce for a touch of heat.
Cheese Variations: Experiment with different cheeses in the mornay sauce, such as Gruyere, cheddar, or Monterey Jack.

FAQs (Frequently Asked Questions)

Q: Can I make this ahead of time?
A: Yes, you can prepare the broccoli and the mornay sauce separately a day in advance. Store them in the refrigerator and assemble the casserole just before baking.

Q: Can I freeze this casserole?
A: It’s not recommended to freeze this casserole, as the sauce may separate and the broccoli can become mushy.

Q: How can I prevent the broccoli from becoming mushy?
A: Be sure to cook the broccoli only until it’s almost tender. Immediately refresh it under cold water to stop the cooking process.

Q: Can I use frozen broccoli?
A: Yes, you can use frozen broccoli florets. Thaw them completely and drain well before adding them to the casserole.

Q: What can I use instead of white bread crumbs?
A: You can use panko bread crumbs, crushed crackers, or even a sprinkle of more Parmesan cheese as a topping.

Final Thoughts

Broccoli with Mornay Sauce is a dish that’s more than just the sum of its ingredients. It’s a celebration of simple flavors, a comforting embrace on a cold day, and a reminder that the best meals are often the ones shared with loved ones. I encourage you to try this recipe and make it your own. Feel free to experiment with different cheeses or add your own special touch. And most importantly, enjoy the process of creating something delicious and heartwarming. Serve it alongside your favorite roast chicken or grilled salmon for a complete and satisfying meal. I’d love to hear your feedback, so please don’t hesitate to share your culinary creations and experiences! Bon appétit!

Broccoli With Mornay Sauce Recipe