Ingredients

  • 1 tablespoon unsalted butter
  • 12 teaspoon unsalted butter
  • 4 slices bacon
  • 1 12 cups fresh breadcrumbs
  • 12 cup finely grated parmigiano-reggiano cheese, plus
  • 2 tablespoons finely grated parmigiano-reggiano cheese
  • 1 tablespoon extra virgin olive oil
  • 1 12 teaspoons chopped fresh thyme leaves
  • kosher salt
  • 2 medium leeks, white and light green parts only, halved and sliced 1/4-inch thick (or one large)
  • 2 teaspoons minced fresh garlic
  • 2 cups fresh corn kernels
  • freshly ground black pepper
  • 23 cup heavy cream
  • 34 cup low sodium chicken broth
  • 12 teaspoon finely grated lemon zest
  • 12 ounces peeled and seeded butternut squash, cut into 1/2-inch dice
  • 8 ounces yukon gold potatoes, cut into 1/2-inch dice

Method

  • Position rack in center of oven and preheat to 400 degrees.
  • Rub a 2 quart shallow gratin dish with 1/2 teaspoon of butter.
  • In a 12" nonstick skillet over medium heat, cook bacon until crisp, about 8 minutes.
  • Transfer bacon to paper towels.
  • Reserve 2 tablespoons of the bacon fat in the skillet; discard the remainder.
  • When bacon is cool, crumble it and reserve.
  • In a small bowl, combine 1 tablespoons of the crumbled bacon with the breadcrumbs, 2 tablespoons of the cheese, the olive oil, 1/2 teaspoon of the thyme, and a large pinch of salt.
  • Add the remaining 1 tablespoons butter to the skillet with the bacon fat and melt over medium heat.
  • Add the leeks and a pinch of salt, and cook, stirring, until softened and just starting to turn golden, 6-7 minutes.
  • Add the garlic and stir well.
  • Add the corn, 1/4 teaspoons of salt, and a few grinds of pepper.
  • Cook, stirring, until the corn has lost its raw look and is slightly shrunken, 2-3 minutes.
  • Cool slightly.
  • Combine cream and chicken broth in a 2 cup liquid measure.
  • Add the lemon zest, 1/2 teaspoons salt, and a few grinds of pepper.
  • Stir to mix well.
  • In a large bowl combine the remaining bacon, the corn-leek mixture, the diced squash, potatoes, and remaining 1 teaspoons thyme.
  • Toss lightly to combine.
  • Spread the mixture evenly in the gratin dish.
  • Sprinkle the remaining cheese on top.
  • Stir the cream mixture one more time and pour it over everything as evenly as possible, being sure to scrape out any seasonings from the cup.
  • Press down on the veggies with a spatula so that the liquids surrounds them and everything is evenly distributed.
  • Sprinkle the breadcrumb mixture evenly over all.
  • Cover with foil and bake 20 minutes.
  • Remove the foil and continue to bake until the crumb topping is deeply golden and the squash and potatoes are tender when pierced with a fork, about 25 minutes.
  • The liquid should have bubbled below the surface of the veggies, leaving browned bits around the edges of the pan.
  • Cool for 20-25 minutes before serving.
  • For a main dish, try adding polish sausage.