2 cups white sugar
4 egg yolks
4 (1 ounce) squares unsweetened chocolate, melted and cooled
1 teaspoon vanilla extract
1 cup water
2 cups brewed coffee
1 cup sour cream
1/2 cup lemon juice
1 cup frozen whipped topping, thawed
Run a wooden spoon down each piece of food. Scoop approximately 1/2 cup at a time into a medium bowl or bigger glass, using a slotted spoon. Place spoon in bowl and sprinkle each piece with 1/2 cup of sugar; continue until all pieces have been incorporated. Refrigerate until ready to use, or store in refrigerator.
Stir together chocolate and vanilla extracts and milk, then pour into a glass serving dish. Sprinkle top with reserved icing and lemon juice.