EGGS À LA BONNE FEMME

4 eggs
1 Spanish onion
1 oz. of butter
1 teaspoonful of vinegar
2 tablespoonfuls of breadcrumbs
pepper and salt to taste

Peel and slice the onion, and fry it brown in the butter; add the vinegar and seasoning when done. Spread the onion on a buttered dish, break the eggs over them, dust these with pepper and salt, and sprinkle with breadcrumbs. Place a few bits of butter on the top, and bake until the eggs are set, which will only take a few minutes.