3 cups boiling water
1 cup white sugar
1 large egg
1 teaspoon vanilla extract
2 cups coffee liqueur
1 quart warm milk
In a saucepan, combine boiling water, sugar, egg, and vanilla extract. Stir gently until sugar dissolves; set aside.
In a small bowl, combine coffee liqueur and warm milk. Pour into glass mug and garnish with orange marmalade.