Sweetbread and Potato Gratin

Tender lamb sweetbreads and thinly sliced potatoes baked in a rich, creamy sauce, topped with caramelized red onions for a decadent French-inspired dish.

Prep
15 min
Cook
30 min
Total Time
45 min
Servings
4
Difficulty
hard
Cuisine
French
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Ingredients

Servings:
4
  • 1poundLamb Sweetbreads, cleaned and trimmed
  • 2tablespoonsButter
  • 1cupHeavy Cream
  • 3mediumPotatoes, peeled and thinly sliced
  • 1mediumRed Onion, thinly sliced
  • 2cupsRomaine Lettuce, chopped

Step-by-Step

  1. 1

    Preheat your oven to 375°F (190°C).

    5m
  2. 2

    In a large skillet, melt the butter over medium-high heat. Add the cleaned and trimmed lamb sweetbreads and sear them on all sides until golden brown, about 5-7 minutes. Transfer the sweetbreads to a plate and set aside.

    10mmedium-high heat
  3. 3

    In the same skillet, add the thinly sliced red onions and sauté until caramelized, about 8-10 minutes, stirring occasionally. Remove the caramelized onions from the skillet and set aside.

    10mmedium heat
  4. 4

    Arrange the thinly sliced potatoes in a greased 9x13-inch baking dish. Pour the heavy cream over the potatoes and season with salt and pepper.

    5m
  5. 5

    Slice the seared sweetbreads and arrange them on top of the potatoes. Top with the caramelized red onions.

    5m
  6. 6

    Bake the gratin in the preheated oven for 25-30 minutes, or until the potatoes are tender and the top is golden brown.

    30m375°F (190°C)
  7. 7

    Remove the gratin from the oven and let it rest for 5 minutes. Serve the sweetbread and potato gratin warm, accompanied by the chopped romaine lettuce.

    5m