-
4 teaspoons cornstarch
-
1 Tablespoon fresh lemon juice
-
1-1/4 cups champagne, dry (brut)
-
1 large shallot, chopped
-
2 cups gruyere cheese, coarsely grated (about 7 oz)
-
1-1/3 cups Emmental cheese, coarsely grated (about 5 oz)
-
1/2 cup brie, rindless, or Camembert, diced (about 3 oz)
-
pinch ground nutmeg, generous
-
pinch ground white pepper
-
1 baguette, crust on, cut into 1-inch cubes