Squash Gratin (Gratin de Courge)

Name: Squash Gratin (Gratin de Courge)
Total time: PT0D0H0M
Yield: serves 8-10
Ingredients: 2 large butternut squash (5–6 lbs.), peeled, seeded, and cut into 1 1/2" chunks; 1 large acorn squash (about 2 lbs.), peeled, seeded, and cut into 1 1/2" chunks; 3 medium Yukon Gold potatoes (about 1 3/4 lbs.), peeled, halved lengthwise, and thickly sliced; 8 cloves garlic, chopped; 2 cups milk; 4 cups grated Gruyère; Kosher salt and freshly ground black pepper, to taste

Serves
serves 8-10

LAURA SANT

The Provençal version of this gratin calls for a French pumpkin called potiron, but a combination of acorn and butternut squash will make a good substitute.

Ingredients

2 large butternut squash (5–6 lbs.), peeled, seeded, and cut into 1 1/2" chunks
1 large acorn squash (about 2 lbs.), peeled, seeded, and cut into 1 1/2" chunks
3 medium Yukon Gold potatoes (about 1 3/4 lbs.), peeled, halved lengthwise, and thickly sliced
8 cloves garlic, chopped
2 cups milk
4 cups grated Gruyère
Kosher salt and freshly ground black pepper, to taste

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Instructions

Step 1

Preheat oven to 400°. Put the butternut and acorn squash into a large pot, cover with salted water, and bring to a boil. Reduce heat to medium-low and simmer, partially covered, until squash are tender, about 20 minutes. Drain well, pressing out any excess water. Meanwhile, put potatoes into a large pot, cover with salted water, and bring to a boil. Reduce heat to medium-low and simmer until just tender, about 10 minutes. Drain.

Step 2

Put squash into a large bowl and mash coarsely with a potato masher. Add the drained potatoes, garlic, and salt and pepper to taste and gently fold together. Transfer squash mixture to a deep 9" × 14" roasting pan or baking dish. Pour milk evenly over top and sprinkle with cheese. Bake until golden brown and bubbly, about 30 minutes. Let cool slightly before serving.