Put 1 teaspoon chocolate syrup into each of 4 coffee cups.
Combine the heavy cream, ¼ teaspoon cinnamon, nutmeg, and sugar and whip until it forms soft peaks.
Stir remaining ½ teaspoon cinnamon into the hot coffee. Divide the coffee evenly between the 4 cups and stir each to blend the coffee with the chocolate syrup.
Top each cup with the spiced whipped cream and serve immediately.