Broccoli and Cauliflower Gratin
Elevate your everyday vegetables with this Broccoli and Cauliflower Gratin! Tender florets are bathed in a luxuriously cheesy sauce, topped with a crunchy, golden breadcrumb crust, and baked to bubbly perfection. A comforting and crowd-pleasing dish that's surprisingly easy to make.
Nutrition
-
Carbohydrate
36 g
-
Cholesterol
79 mg
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Fiber
6 g
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Protein
21 g
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Saturated Fat
18 g
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Sodium
657 mg
-
Sugar
11 g
-
Fat
35 g
-
Unsaturated Fat
0 g
DIRECTIONS
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01 Step
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Preheat the oven to 375 degrees F (190 degrees C). Grease a 9x13 inch baking dish with 2 teaspoons of butter. (Prep time: 5 minutes)
02 Step
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Bring a large stockpot of salted water to a boil. Add the cauliflower florets and cook until tender-crisp, about 8-10 minutes. Transfer to a strainer using a slotted spoon and rinse under cold water to stop the cooking process. (Cook time: 10 minutes)
03 Step
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Add the broccoli stalks to the boiling water and cook for 3 minutes. Add the broccoli florets and cook until the stalks and florets are tender-crisp, about 5 minutes more. Transfer to the strainer and rinse under cold water. (Cook time: 8 minutes)
04 Step
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Thoroughly dry the cauliflower and broccoli with paper towels. Arrange the vegetables evenly in the prepared baking dish. (Prep time: 5 minutes)
05 Step
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In a saucepan, melt 1/2 cup (1 stick) of butter over medium heat. Whisk in the flour and cook, whisking constantly, until the mixture forms a smooth paste (a roux) and begins to lightly brown, about 4 minutes. (Cook time: 4 minutes)
06 Step
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Gradually add the milk, whisking constantly to prevent lumps. Bring the mixture to a simmer, whisking constantly, until the sauce thickens, about 2-4 minutes more. (Cook time: 4 minutes)
07 Step
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Remove the saucepan from the heat. Whisk in the mustard powder, Worcestershire sauce, and black pepper. Stir in the grated Cheddar cheese until it is melted and fully incorporated into the sauce. (Prep time: 3 minutes)
08 Step
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Pour the cheese sauce evenly over the cauliflower and broccoli in the baking dish. Gently tap the dish on the counter a few times to release any trapped air bubbles. (Prep time: 2 minutes)
09 Step
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In a small bowl, combine the Italian seasoned bread crumbs and olive oil. Sprinkle the breadcrumb mixture evenly over the vegetable and cheese sauce. Dust with a pinch of paprika. (Prep time: 5 minutes)
10 Step
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Bake in the preheated oven until the gratin is bubbly and the breadcrumb topping is golden brown, about 30 minutes. Let stand for 5-10 minutes before serving. (Bake time: 30 minutes)
For an even richer flavor, use a blend of cheeses such as Gruyere, Parmesan, and sharp Cheddar.
To save time, you can use pre-cut cauliflower and broccoli florets.
The gratin can be assembled ahead of time and refrigerated for up to 24 hours before baking. Add about 10 minutes to the baking time if baking from cold.
Add a clove of minced garlic to the butter when making the cheese sauce for extra flavor.
RECIPE REVIEWS
Avarage Rating:
4.1/ 5 ( 8 Ratings)
Total Reviews: (4)
Chelsea Wunsch
May 17, 2025I added some cooked bacon to the breadcrumb topping, and it took this gratin to the next level!
Dorcas Huel
May 14, 2025The instructions were clear and easy to follow. I will definitely be making this again.
Saige Baumbach
May 12, 2025I made this for a potluck, and it was a huge hit. Everyone asked for the recipe!
Brice Abbott
Apr 29, 2025This recipe is fantastic! The cheese sauce is so creamy and flavorful, and the breadcrumb topping adds a perfect crunch. My family loved it!