Creamed Corned Beef Au Gratin

2 cups of cold corned beef, cut in cubes. 1/4 cup of flour. 2 cups of milk. 2 slices of onion. Paprika to taste. 1 cup of celery leaves or coarse stalks cut in pieces. 1/2 cup of cracker crumbs. 2 tablespoonfuls of melted butter. 1/4 cup of butter.

Scald the milk with the onion and celery and strain a little at a time over the butter, flour, and paprika creamed together; stir and cook until smooth and boiling, then cook over hot water ten minutes, and strain over the corned beef; turn into a buttered gratin dish, stir the cracker crumbs into the melted butter, spread them over the top of the mixture and set the dish in the oven long enough to brown the crumbs. Garnish with curled celery or celery leaves.