Recipe: Olive Garden Black Tie Mousse Cake

I found this recipe at the topsecretrecipes site .......

OLIVE GARDENS BLACK TIE MOUSSE CAKE
2 C. FLOUR, 2 C SUGAR, 3/4 C COCOA, 2 TSP. BAKING SODA, 1 TSP. BAKING POWDER, SALT, 2 EGGS, 1
C, BLACK COFFEE, MILK, 1/2 C, SALAD OIL, 3 TSP. VANILLA, 1/4 C, BUTTER, 2 C, CONFECTIONERS
SUGAR
SIFT FIRST 5 INGR, AND 1/2 TSP. SALT TOGETHER IN LARGE BOWL ADD EGGS, COFFEE, I CUP MILK
SALAD OIL AND 2 TSP. VANILLA. BLEND UNTIL SMOOTH. POUR THIN BATTER IN GREASED 9X13 PAN.
BAKE IN 350 F OVEN FOR 35 MINUTES. MEANWHILE CREAM BUTTER UNTIL SOFT AND SIR IN
CONFECTIONERS SUGAR, 1/8 TSP SALT, 3 TBSP MILK, AND 1 TSP VANILLA. BEAT UNTIL SMOOTH AND
CREAMY ADDING MORE MILK IF NECESSARY
SPREAD OVER WARM CAKE. ENJOY !