Put the unflavored gelatin into a medium mixing bowl.
Add the skim milk.
Stir and set aside.
In a small saucepan, bring the coffee to a boil.
Pour over the gelatin.
Stir until the gelatin is completely dissolved.
Add the other ingredients.
Coat an 8 in. (20 cm) sq. baking pan with non-stick vegetable spray.
Pour the batter into the pan.
Chill until firm.
Cut into 9 squares.