1wholecauliflowerleaves and thickest part of core removed being careful to keep the head intact.
For the Sauce
½cupmayonnaise
½cupParmesan cheese
¼cupsharp cheddar cheese
2teaspoonswhole grain mustard
2tablespoonschopped green onion
Pepper to taste
Parsley for Garnish (optional}
Instructions
Bring wine, oil, kosher salt, juice, butter, red pepper flakes, sugar, bay leaf, and 8 cups water to a boil in a large pot. Add whole cauliflower, reduce heat and simmer, turning occasionally, until a knife easily inserts into center, 15-20 minutes.
Preheat oven to 475 degrees.
Remove cauliflower from pot using 1 or 2 slotted spoons, drain and transfer the cauliflower to a rimmed baking sheet. Roast, rotating sheet halfway through, until brown all over, 30-40 minutes.
Reduce the oven to 375 degrees.
To Make the Cheese Sauce
Mix all of the ingredients together in a small bowl and 'frost' the top and sides of the cauliflower. Return to the oven for about 5-7 minutes or just until the cheese has started to melt. Garnish with chopped parsley if desired.