01 - Brew strong coffee and distribute evenly between two heatproof glasses or mugs, filling each about three-quarters full.
02 - Add 1 tablespoon brown sugar to each glass. Stir thoroughly until completely dissolved.
03 - In a chilled mixing bowl, combine heavy cream, powdered sugar, and vanilla extract. Beat with hand mixer or whisk until soft peaks form and mixture holds its shape.
04 - Gently spoon whipped cream over the back of a tablespoon onto each coffee drink, creating a distinct floating layer. Do not stir.
05 - Lightly dust with cocoa powder or nutmeg if desired. Serve immediately while coffee remains hot.