Ingredients

  • 12 slices bacon
  • 4 large baking potatoes, peeled and cut into 1/2-inch cubes
  • 4 green onions, chopped
  • 8 tablespoons (1 stick) butter
  • 1/2 cup all-purpose flour
  • 6 cups milk, heated
  • 1 1/4 cups shredded Cheddar
  • 1 cup sour cream
  • 1 teaspoon salt
  • 1 teaspoon freshly ground black pepper

Method

  • Position the oven racks so that they are evenly spaced.
  • Preheat the oven to convection roast at 450F.
  • Arrange the bacon slices in a shallow roasting pan and bake until crisp; remove from the oven and pour off all but 1 tablespoon of the drippings.
  • Crumble the bacon and reserve.
  • Add the potatoes to the pan, roll them around until coated with bacon fat, and spread them in a single layer.
  • Return the pan to the oven and roast for 20 minutes, until the potatoes are tender.
  • Add the green onions during the last 3 minutes of roasting.
  • Heat the butter in a saucepan until melted and stir in the flour.
  • Whisk in the milk and heat to boiling, whisking all the time.
  • Cook until thickened.
  • Add the roasted potatoes and onions; mix in the Cheddar, sour cream, salt, and pepper.
  • Serve with a sprinkling of bacon on top.