01 - Brew fresh coffee and distribute evenly between two heatproof glasses or mugs.
02 - Stir brown sugar, vanilla extract, and cinnamon into each glass until completely dissolved.
03 - Using a hand mixer or whisk, beat heavy cream with powdered sugar and vanilla extract in a medium bowl until soft peaks form.
04 - Gently float whipped cream atop each drink by pouring over the back of a spoon to prevent sinking.
05 - Sprinkle with ground nutmeg or chocolate shavings if desired. Serve immediately while hot.