Fall Squash, Apple, Potato & Comte Cheese Gratin

“The apples and squash help keep this dish from getting too heavy as opposed to traditional potato dishes.”

By / Photography By Chris Rov Costa | November 01, 2016

Preparation

To make the cheese sauce, simmer milk, garlic and bay leaf gently until garlic is tender. Remove garlic and bay leaf. Smash garlic to a paste and add back to milk. Cook butter and flour over low heat, stirring often for 10 to 15 minutes to make a roux. Whisk or blend roux into the milk mixture and bring to a low simmer for 20 minutes. Use a heavy bottom stainless steel pot, (not aluminum) and be mindful not to let the bottom scorch.

Preheat oven to 325° F. To assemble gratin: Coat 8×12 inch baking dish with butter. In a bowl, toss sliced potatoes and squash with salt to and let sit for 5-10 minutes. With a clean towel, pat dry the salted potatoes and squash, then taste the raw potato for seasoning. Adjust seasoning if necessary. Combine potato mixture, apples, leek with 3 cups of the cheese sauce in a bowl and toss to coat evenly. If it seems a bit dry add more sauce to coat. Pack the mixture into the baking dish and gently press it down to so you have a smooth surface. Top with reserved comte cheese and some fresh thyme leaves. Bake for 45 minutes, or until golden brown on top and tender when pierced with a knife.

Serves 6 to 8

Ingredients

Cheese Sauce:
  • 3 cups whole milk
  • 3 whole cloves garlic, peeled
  • 1 bay leaf
  • 4 ounces unsalted butter
  • ¼ cup all-purpose flour
  • 1 cup comte cheese, plus a couple of ounces to garnish
  • Salt, to taste
Gratin:
  • 2 large russet potatoes, peeled and cut into ⅛th inch thick slices
  • 2 small butternut squash, peeled and deseeded, and cut into ⅛th inch thick slices
  • Several shakes of salt
  • 2 medium tart apples such as Pink Lady or Honeycrisp, peeled and thinly sliced
  • 1 large leek, thinly sliced
  • 1 tablespoon fresh thyme leaves, for garnish
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