Deluxe Potato Gratin Recipe

Elevate your weeknight dinner with this decadent Deluxe Potato Gratin! Imagine layers of thinly sliced potatoes, infused with savory leeks, crispy bacon, and fragrant sage, all bathed in a creamy mustard sauce and melted cheese. This hearty gratin, reminiscent of scalloped potatoes but infinitely more flavorful, is a complete meal in itself. A simple side salad perfectly complements its richness. Prepare to be amazed!

Prep Time 30 mins
Cook Time 105 mins
Calories 1277.5 kcal
Protein 63g
Rating Be the first
Deluxe Potato Gratin 65

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Forktionary editorial kitchen team

The Forktionary Kitchen Team

Adapted from Food.com, then tested & standardized by Forktionary.

Ingredients for Deluxe Potato Gratin

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How to Make Deluxe Potato Gratin

  1. Preheat oven to 400°F (200°C).
  2. Peel and thinly slice 2 lbs Yukon Gold potatoes.
  3. Rinse the sliced potatoes under cold water to remove excess starch. Pat them completely dry with a clean kitchen towel.
  4. Trim the dark green ends from 2 medium leeks. Thinly slice the white and light green parts.
  5. Generously butter a 9x13 inch gratin dish.
  6. Layer half of the sliced potatoes in the prepared dish.
  7. Evenly distribute the sliced leeks over the potatoes.
  8. Cook 4 slices of bacon until crispy. Crumble and spread over the leeks.
  9. In the bacon fat remaining in the pan, sauté 4-6 fresh sage leaves until crispy. Scatter over the leeks.
  10. Pour any remaining bacon fat over the leeks.
  11. Grate 1 cup of Gruyère cheese (or your favorite melting cheese) over the leeks and bacon.
  12. Top with the remaining potato slices.
  13. Heat 1 ½ cups of chicken or vegetable stock and gently pour over the potatoes until it just reaches the top layer. Do not submerge.
  14. Season generously with salt and pepper. Dot the top with 2 tablespoons of butter.
  15. Place a sheet of waxed paper, butter-side down, on top of the gratin.
  16. Bake for 45 minutes.
  17. Remove the waxed paper. Check for doneness with a skewer; potatoes should be nearly tender.
  18. In a small bowl, whisk together ¼ cup crème fraîche and 1 tablespoon Dijon mustard.
  19. Pour the mustard mixture evenly over the gratin, spreading it with a rubber spatula.
  20. Return to the oven (without the waxed paper) for 15-20 minutes, or until golden brown, bubbling, and cooked through.
  21. Let stand for 5-10 minutes before serving. Garnish with fresh parsley if desired.

Nutrition Information (Approximate per serving)

Sodium

67 g

Sugar

52g

Fat

189g

Carbs

31g

Frequently Asked Questions

How long does it take to make Deluxe Potato Gratin?

Deluxe Potato Gratin takes about 135 minutes from start to finish — roughly 30 minutes to prepare and 105 minutes to cook.

How many calories are in Deluxe Potato Gratin?

Deluxe Potato Gratin has approximately 1277.5 calories per serving, with about 63 g protein, 31 g carbohydrates and 135 g fat.

What ingredients do I need for Deluxe Potato Gratin?

The key ingredients for Deluxe Potato Gratin are Potatoes, Leeks, Streaky Bacon, Hard Cheese, Chicken Stock, Butter. See the full list with measurements above.

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