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Prosciutto Croque Madame

Prosciutto Croque Madame with Roasted Green Beans

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The French made the humble ham and cheese sandwich glorious when they smothered it with rich béchamel—a traditional white sauce of butter, flour, and milk. Then they went ahead and topped it with a runny egg and made us salivate from across the pond. Chef Taylor’s version swaps out the ham for rich, salty Italian prosciutto, and adds melty Swiss cheese to the béchamel to create a decadent Mornay sauce. Add tangy Dijon, more Swiss cheese, and a gooey sunny-side-up egg, and you’ve got a happy dinner companion.

    Serving size
    2servings
    Prep & cook time
    minutes
    Cooking Skill
    medium
    • Calories 930
    • Protein 35g
    • Total Carb 78g
    • Total Fat 55g

    Given the cook-at-home nature of Plated and natural variation in ingredients, nutritional information is approximated. See details.

    Ingredients & Equipment

    What we send

    • prosciutto
      • 2 ounces
      • prosciutto
    • white bread
      • 4 slices
      • white bread
    • green beans
      • 6 ounces
      • green beans
    • flour
      • 1 tablespoon
      • flour
    • Swiss cheese
      • 4 slices
      • Swiss cheese
    • lemon
      • 1
      • lemon
    • frisée
      • 3 ounces
      • frisée
    • chives
      • 1/8 ounce
      • chives
    • unsalted butter
      • 4 packets
      • unsalted butter
    • Dijon mustard
      • 2 packets
      • Dijon mustard
    • honey
      • 1 packet
      • honey
    • milk
      • 8 ounces
      • milk

    What You’ll Need

    • black pepper
    • olive oil
    • kosher salt
    • eggs
    • 2 baking sheets
    • 8" medium pot
    • 10" medium nonstick pan

    Allergens

    Cooking Steps

    1. Prepare Ingredients

      Prepare Ingredients

      Preheat oven to 450°F. Set butter aside to soften at room temperature. Rinse all produce. Trim ½ inch of dark green tops off frisée, trim and discard tough stem, and tear into bite-size pieces. Trim and discard ends of green beans, then transfer to a baking sheet and toss with 1 tablespoon olive oil, ¼ teaspoon salt, and pepper. Thinly slice chives. Halve lemon. Set aside 2 slices Swiss cheese for Step 4; roughly chop remainder for Step 3.

    2. Make Beurre Manié and Toast Bread

      Make Beurre Manié and Toast Bread

      In a small bowl, combine flour and 2 packets softened butter and, using your fingers, knead together until fully blended to form a smooth paste. On a separate baking sheet, arrange bread slices in a single layer. Spread remaining butter over both sides of bread slices, dividing evenly. Transfer to oven and toast until golden, 5 minutes. Then, remove from oven and set aside to cool. 

    3. Make Mornay Sauce

      Make Mornay Sauce

      Heat milk, ½ teaspoon salt, and pepper as desired in a medium pot over medium-high heat. Bring to a boil, whisking, then whisk in beurre manié until fully dissolved, 30 seconds. Reduce heat to medium and whisk until sauce is thickened, 3-4 minutes more. Remove from heat and whisk in chopped Swiss cheese. Transfer baking sheet with green beans to oven and roast until tender, 8-10 minutes.

    4. Bake Sandwiches

      Bake Sandwiches

      While green beans roast, still on baking sheet, spread mustard evenly over 1 side of 2 bread slices. Layer remaining bread slices with sliced Swiss, then prosciutto, then half of Mornay sauce. Finish with mustard bread slices, mustard-side down. Spread remaining Mornay sauce over tops of sandwiches. Transfer to oven (with green beans) and bake until tops are golden brown, about 8 minutes.

    5. Fry Eggs and Make Dressing

      Fry Eggs and Make Dressing

      While sandwiches bake, heat 1 tablespoon olive oil in a medium nonstick pan over medium heat. When oil is shimmering, crack 2 eggs into pan. Season with ¼ teaspoon salt and pepper. Fry until whites are set but yolks are still runny, 2-3 minutes. Remove pan from heat. In a medium bowl, whisk together ½ packet honey, half of chives, juice of 1 lemon, 2 tablespoons olive oil, ¼ teaspoon salt, and pepper.

    6. Plate Croque Madames

      Plate Croque Madames

      Add roasted green beans and frisée to bowl with dressing, toss to coat, and transfer to serving plates. Add sandwiches to plates with green beans, then top with fried eggs. Sprinkle remaining chives over prosciutto croque madames and enjoy! Save remaining honey to sweeten a cup of tea.

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