1/4 cup butter, melted ………………………… 3 eggs, separated
2 cups milk ……………………………………… 1/2 tsp ground mustard
1/2 tsp Kosher or sea salt ……………………. 1/4 tsp cayenne pepper
9 slices bread, cut into 1/2-inch cubes (sourdough, French or Italian are best)
3 cups (12 ounces) shredded cheddar or blend cheese
***
In a large bowl combine butter, egg yolks, milk, mustard, salt and
cayenne pepper. Stir in bread cubes and cheese. In another bowl,
beat egg whites until soft peaks form; fold into bread mixture.
Pour into a sprayed 10" square or 7x12" rectangle baking dish. Cover and chill for 8 hours or overnight. Remove from refrigerator 30 minutes before baking.
Bake, uncovered, at 350° for 40-45 minutes or until a knife inserted near the center comes out clean. Let stand 5 minutes before
cutting. 6 servings.