There's horseradish in the cream sauce and, for good measure, some more in the buttery crumb crust.
Recipe information
Yield
Serves 8 to 10
Ingredients
Preparation
Step 1
Preheat oven to 375°F. Steam cauliflower until crisp-tender, about 9 minutes. Transfer to 13x9x2-inch glass baking dish. Melt 3 tablespoons butter in heavy large saucepan over medium heat. Add flour and stir 2 minutes (do not brown). Gradually whisk in half and half. Cook until sauce boils and thickens, whisking constantly, about 4 minutes. Mix in 5 tablespoons horseradish and vinegar. Season to taste with nutmeg, salt and pepper. Pour sauce over cauliflower and mix to coat. Sprinkle cheese over. (Can be made 1 day ahead. Cover and chill.)
Step 2
Melt 3 tablespoons butter in heavy medium skillet over medium heat. Mix in mustard and remaining 2 tablespoons horseradish. Add breadcrumbs; stir until crumbs are golden brown, about 9 minutes. Sprinkle over cauliflower.
Step 3
Bake until cauliflower is heated through, about 25 minutes.
