1/2 Cup butter1 Cup powdered sugar4 egg yolks2 squares unsweetened chocolate4 egg whites1 teaspoon vanilla1/2 XX cream1 sponge cake or 2 dozen lady fingers
Cream butter well, beat in sugar; then beat in egg yolks, 1 at a time. Melt chocolate over hot water and add slowly to egg, sugar and butter mixture. Add vanilla. Beat egg whites until stiff, then gently fold into mixture. Line a mold with strips of cake
Source: The Memphis Cook Book, page 159
