Chicken in Champagne Oasis

• 1 tender chicken (about 3 pounds)
• 4-6 tablespoons butter

Cut chicken into serving pieces and simmer in butter in a fire-proof casserole with finely-chopped onion and salt and freshly-ground black pepper, to taste. Turn chicken pieces several times; cover casserole and let them steam on the lowest possible heat for 10 minutes. The chicken should not take on colour.

Sprinkle chicken pieces with flour; turn several times and then pour over champ