Masterchef Cauliflower "Mac 'N' Cheese" - cooking recipe

Ingredients

8 cups cauliflower florets (1 head)
2 tablespoons extra-virgin olive oil
1/2 teaspoon kosher salt
1/2 teaspoon ground black pepper
2 tablespoons unsalted butter
2 tablespoons flour
1 1/2 cups milk
1 1/4 cups heavy cream
1/4 teaspoon salt
1 cup grated sharp cheddar cheese

Preparation

Preheat oven to 400\u00b0F Toss florets in oil on a baking sheet. Sprinkle with kosher salt and 1/4 teaspoons pepper. Roast until fork-tender and lightly browned, 25 minutes. Remove pan from oven. Reduce oven to 350\u00b0F.
Melt butter in a medium skillet over medium heat. Stir in flour and cook for 1 minute (I cooked mine for a few more minutes to a toasty brown). Gradually whisk in milk. Simmer over medium heat, stirring frequently, until thickened, 2 to 4 minutes. Whisk in cream and cook for 5 minutes.
Remove pan from heat and stir in 1/4 teaspoons salt, 1/4 teaspoons pepper and all but 2 tablespoons of cheese. Stir over medium-low heat for 5 minutes. (I didn't even turn my flame back on, just stirred until the cheese melted from the residual heat.).
Place cauliflower in an 8x8-in. glass baking dish or 4 10-oz. ramekins. Pour cheese sauce on top. Sprinkle with 2 tablespoons cheese. Bake until sauce is bubbly, 20 to 25 minutes.