Potato, Leek and California Walnut Gratin Recipe
Potato, Leek and California Walnut Gratin
Total time: 1hr to 2hr

Preparation time : 10 minutes
Cooking time : 1 hour 50

Difficulty: Easy
Chef's Note

The ultimate comfort food, this rich, creamy side dish offers an indulgent accompaniment to Easter ham. The Gruyère cheese and California walnuts add a sophisticated depth of flavour to each bite.

For a healthier alternative, replace heavy cream with 2% or whole milk. The Gruyère may also be substituted with low-fat mozzarella.

Make the recipe a day ahead. Let cool; cover and refrigerate. Reheat in the oven for 1 hour or until bubbly.


For 6 servings

- 2 tbsp butter
- 2 leeks, thinly sliced (white and light green part only)
- 4 to 5 medium russet (baking) potatoes
- Salt and pepper
- 325 ml / 1-1/3 cups grated Gruyère cheese, divided
- 250 ml / 1 cup whipping cream
- 250 ml / 1 cup chicken or vegetable broth
- 60 ml / 1/4 cup panko (Japanese breadcrumbs)
- 180 ml / 3/4 cup California walnut pieces

  1. Preheat oven to 375°F / 190°C.
  2. In a medium pan over medium-high heat, melt butter. Add leeks and sauté until tender; set aside.
  3. Peel and slice potatoes into 1/8 inch thick (2 mm) rounds using a mandolin or chef knife.
  4. In an 8-inch (2 L) baking dish, arrange a quarter of potato slices in rows slightly overlapping until the bottom is covered. Season lightly with salt and pepper, sprinkle with a quarter of the sautéed leeks, 1/4 cup (60 mL) of Gruyère and drizzle with 1/4 cup (60 mL) cream. Repeat layers three more times for a total of four layers.
  5. Pour broth over the potatoes, cover dish with foil and place on a baking sheet to catch any liquid that may bubble out.
  6. Bake for 1 hour and 20 minutes or until knife pierces each layer without resistance.
  7. In a small bowl, combine the remaining Gruyère, panko and walnuts and season with salt and pepper.
  8. Remove dish from oven, uncover and top evenly with walnut mix. Return to oven for 15 minutes or until walnuts are golden brown.
Nutrition facts

PER SERVING: about 496 cal, 14 g pro, 35 g fat (17 g sat. fat), 34 g carb, 5 g fibre, 87 mg chol, 489 mg sodium. %RDI: 29% calcium, 17% iron, 29% vit A, 31% vit C.

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Collaboration : WWW.WALNUTINFO.COM

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