Line two 1/2-cup coeur a la creme molds or two 6-ounce custard cups with double thickness of dampened cheesecloth, extending far enough beyond edges to enclose filling completely.
Combine 1/4 cup whipping cream, cocoa and butter in small saucepan. Cook over low heat, stirring constantly, until smooth.
Remove from heat; cool.
Beat cream cheese, powdered sugar and vanilla in small bowl until smooth.
Add cocoa mixture, blending well.
Add remaining 1/4 cup whipping cream; beat until well blended. Spoon mixture into prepared molds. Fold cheesecloth over top.
Place a wire rack in a tray or deep plate; place molds on rack.
Refrigerate 8 hours or overnight. To serve, pull back cheesecloth and invert each mold onto a chilled dessert plate; carefully remove cheesecloth.
Serve with STRAWBERRY SAUCE.
STRAWBERRY SAUCE: Puree 1 package (10 oz.) frozen strawberries in light syrup, thawed, in food processor bowl or blender container. Strain puree through fine sieve into small bowl. Stir in 1 tablespoon kirsch (cherry brandy), if desired. About 1 cup sauce.