Spinach and Leek Gratin with Roquefort Crumb Topping

A luxurious gratin combining wilted spinach and tender leeks in a creamy sauce, topped with a golden breadcrumb crust featuring sharp Roquefort cheese and horseradish Dijon mustard.

6 servings
35 min

Ingredients

  • 5 tablespoons butter
  • tablespoons horseradish Dijon mustard
  • 2⅓ cups fresh breadcrumbs
  • 1 cup Roquefort cheese
  • 3 bags spinach leaves
  • 1 piece leek
  • ¾ cup heavy whipping cream

Cooking Instructions

  1. 1.

    Preheat oven to 400°F. Melt 3 tablespoons butter in medium skillet over medium-high heat. Mix in 2 tablespoons mustard, then breadcrumbs. Sauté until breadcrumbs are golden, about 5 minutes. Cool briefly. Mix in cheese.

    10 min

  2. 2.

    Toss 1 1/2 bags spinach in large nonstick pot over high heat until wilted, about 3 minutes. Transfer to sieve set over bowl. Repeat with remaining spinach. Press on spinach to drain.

    9 min

  3. 3.

    Melt remaining 2 tablespoons butter in same pot over medium-high heat. Add leek; sauté 4 minutes. Add cream, remaining 1 1/2 tablespoons mustard, and spinach. Toss until thick and blended, about 2 minutes. Season with salt and pepper. Transfer to 7x11-inch baking dish. Top with breadcrumb mixture. Bake until bubbling, about 10 minutes.

    16 min