Combine eggs and sugar in top of double boiler; beat at medium speed of an electric mixer until thick and lemon colored. Bring water to a boil; reduce heat to low, and cook 8-10 minutes, stirring constantly. Remove from heat. Add mascarpone, and beat until smooth.
Beat whipping cream in a medium bowl until soft peaks form; fold into chees mixture.
Combine water*, coffee granules, and brandy; brush on cut side of lady f fingers. Line sides and bottom of a triffle bowl or 3-quart souffle dish with 36 lady fingers; pour in half of filling. Layer remaining ladyfingers on top. Garnish if desired; cover and chill 8 hours. Yeild: 10-12 servings