Mocha magic torte recipe from 1982 - Click Americana

Ingredients

• 2-1/4 cups unsifted all-purpose flour
• 1-1/2 teaspoon baking soda
• 1/4 cup Maxwell House instant coffee
• 1-1/3 cups water
• 1-2/3 cups sugar
• 3 eggs
• 1 teaspoon vanilla
• 1 cup mayonnaise
• 2 ounces unsweetened chocolate, melted, cooled
• 1/2 cup milk
• 2 tablespoons instant coffee
• 3 ounces unsweetened chocolate
• 2/3 cup margarine
• 32 ounces unsifted confectioners' sugar
• 2-3 tablespoons milk