01 - In a chilled bowl, combine cold heavy cream, powdered sugar, and vanilla extract. Whip with a hand mixer or whisk until soft peaks form. Keep refrigerated until ready to serve.
02 - Brew fresh, strong coffee. Pour ¾ cup into each of two heatproof glasses or mugs.
03 - Stir 1 teaspoon brown sugar into each glass until completely dissolved.
04 - Gently spoon a generous layer of whipped cream over the surface of each coffee, allowing it to float on top without mixing into the liquid.
05 - Sprinkle with grated nutmeg or cocoa powder if desired. Serve immediately while hot.