2/3 c. butter
1 3/4 c. sugar
2 eggs
1 tsp. vanilla
2 1/2 (1 oz.) squares unsweetened chocolate, melted
1 1/4 tsp. baking soda
2 1/2 c. sifted cake flour
1/2 tsp. salt
1 1/4 c. ice water

Cream together butter, sugar, eggs and vanilla until fluffy; beat at least 5 minutes on high speed on mixer, scraping bowl occasionally. Blend in cooled chocolate. Sift together flour, soda, and salt; add to creamed mixture alternately with ice water; beginning and ending with flour; beat after each addition. Bake in two paper-lined 9 x 1 1/2 inch round pans at 350 degrees for 30 to 35 minutes until done. Frost cooled cake with Chocolate Satin Frosting.