French in a Flash: Truffled Macaroni Gratin Recipe

Ingredients (12)

• 3 tablespoons black truffle butter, plus 1 tablespoon, room temperature
• 3 tablespoons flour
• 2 1/2 cups whole milk
• 1 pound rigatoni
• 3 ounces grated Gruyère
• 3 ounces grated sharp white cheddar
• 1/4 pound mild brie, rind removed
• Pinch nutmeg
• 1 cup heavy cream
• 1 cup baguette crumbs
• Black truffle oil, for drizzling
• Salt and freshly cracked black pepper