Three Cheese Souffle

Name: Three-Cheese Souffle
Ingredients: 6 tablespoons unsalted butter, plus more for greasing; 1 1/4 cups finely grated parmesan cheese; 1 tablespoon cornmeal; 3/4 teaspoon minced garlic; 1/2 cup plus 1 tablespoon all-purpose flour; Pinch of freshly grated nutmeg; Kosher salt; 2 cups whole milk; 1 1/2 cups finely grated comte or gruyere cheese; 1 cup finely grated emmentaler or appenzeller cheese; 4 large eggs, separated, plus 2 egg whites; 3/4 teaspoon fresh lemon juice; Sliced baguette, for serving; Pate and/or apple butter, for serving (optional)