This is just standard cake syrup but with a little zing. Remember that cake syrup is made by combining water and sugar 2-1 by volume and then heating it until the sugar dissolves. To make coffee cake syrup combine 1 cup of water with half a cup of sugar and add about three tablespoons of instant coffee or instant espresso powder. Bring the mixture to a simmer and…done! Cool and store in the refrigerator until needed. It’ll keep well for a week or more.