Brew Coffee: Prepare 1 cup of strong coffee using your preferred brewing method.
Heat the Eggnog: Pour the eggnog into a small saucepan and heat over low heat, stirring constantly to avoid burning. Alternatively, microwave it in a heat-safe cup for 30-60 seconds.
Sweeten and Flavor: Stir in sugar, if desired, while the eggnog is warm. Adjust sweetness to your taste.
Combine: Pour the warm eggnog into the mug of hot coffee and stir gently.
Garnish: Top with whipped cream and a light sprinkle of nutmeg for a festive finish.
Optional Add-ins: For a special occasion, add a splash of bourbon or rum for an extra holiday treat.