1/4 lb. unsalted butter
4 eggs
1/4 tsp. salt
2/3 c. sugar
1 c. sifted flour
1 tsp. vanilla

Preheat oven to 375 degrees. Butter and flour pans carefully. You also need scalloped shell shaped madeline pans. Beat eggs, salt, sugar together; fold in flour rapidly but gently. Fold in butter gently but make sure it does not settle in bottom. Quickly spoon mixture into madeline pans. Bake until golden brown, about 10 minutes. Remove from pan. Put on cooling racks and dust with confectioners sugar.