Philly Cheesesteak Sauce

Philly Cheesesteak Sauce
 
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Ingredients
  • 1 tablespoon unsalted butter
  • 1 tablespoon all-purpose flour
  • 2 cups whole milk, heated
  • 1 cup grated aged provolone cheese
  • ¼ cup grated Parmigiano-Reggiano
  • 1 teaspoon kosher salt
  • ¼ teaspoon freshly ground black pepper
Instructions
  1. Melt butter in a medium saucepan over medium heat.
  2. Whisk in the flour and cook for 1 minute.
  3. Slowly whisk in the warm milk, and cook, whisking constantly until thickened, about 4 to 5 minutes. Remove the mixture from the heat and whisk in the provolone and Parmesan until combined; season with the salt and pepper.