Get your chocolate fix with this Eggnog Mocha Mug Cake — an easy, under-200-calorie holiday treat that takes about a minute in the microwave for a moist, delicious single-serving cake.
There’s something magical about the holiday season: the scent of a freshly cut tree, pulling out decorations you only unwrap once a year, festive music on repeat, and cozy gatherings with friends and family. For many of us, eggnog is an essential part of that celebration — whether enjoyed in a cup or used to flavor seasonal desserts.
If you love holiday coffee flavors and want a quick, portion-controlled dessert, this Eggnog Mocha Mug Cake is perfect. It captures the comfort of a chocolate mocha with the warm spices of eggnog, and it’s ready in minutes with simple pantry ingredients. It’s also a great way to enjoy a classic seasonal flavor while keeping calories in check.
This cake combines white whole wheat flour and cocoa powder with instant coffee for mocha flavor, eggnog for richness and holiday spice, unsweetened applesauce in place of oil for moisture, and a touch of sugar, nutmeg, and vanilla. You can use dairy or dairy-free eggnog depending on preference. Top it with a dollop of whipped cream and a drizzle of chocolate syrup for a decadent finish that still feels light for a single serving.
Eggnog Mocha Mug Cake
Easy single-serve holiday mug cake with chocolate, coffee, and eggnog — ready in just over a minute.
Prep Time: 5 mins | Cook Time: 1 min | Total Time: 6 mins | Servings: 1
Ingredients
- 3 Tbsp white whole wheat flour
- 2 Tbsp cocoa powder
- 1 tsp instant coffee (any favorite blend)
- 1/2 tsp baking powder
- 1 Tbsp raw sugar (or granulated sugar)
- 1/4 tsp nutmeg
- 3 Tbsp eggnog (dairy or dairy-free)
- 2 tsp unsweetened applesauce
- 1/4 tsp vanilla extract
Instructions
- In a small bowl, whisk together the flour, cocoa powder, instant coffee, baking powder, sugar, and nutmeg until evenly combined.
- Add the eggnog, applesauce, and vanilla extract to the dry ingredients. Whisk until the batter is smooth and all clumps are gone.
- Spoon the batter into a microwave-safe coffee mug (mugs with at least 10–12 oz capacity work well).
- Microwave on high for 1 minute and 15 seconds, or until the cake has set. Microwave times vary; if needed, add 10–15 second increments until cooked through.
- Allow the mug cake to cool briefly, then top with whipped cream, a dusting of nutmeg, or a drizzle of chocolate syrup. Serve warm and enjoy.
Tips and Variations
- For a stronger coffee flavor, increase the instant coffee to 1 1/2 tsp. For a milder mocha, stick with 1 tsp.
- Use regular eggnog for a richer taste or almond/coconut milk eggnog for a dairy-free option. Unsweetened eggnog alternatives will reduce added sugars.
- If you prefer less sugar, reduce the sugar to 2 tsp or use a sugar substitute suitable for baking.
- Add a small pinch of cinnamon or a dash of pumpkin spice for extra holiday warmth.
- To make this in the oven for a slightly different texture, bake at 350°F (175°C) in a small ramekin for 10–12 minutes.
Nutrition (approx.)
Serving: 1 mug cake | Calories: 194 kcal | Carbohydrates: 43.7 g | Protein: 5.1 g | Fat: 2.4 g | Saturated Fat: 0.8 g | Fiber: 7.3 g | Sugar: 18.7 g
Nutrition information is automatically calculated and should be used as an approximation.
Why this works
This mug cake is a fast, portion-controlled dessert that delivers the seasonal flavors of eggnog and mocha without the time investment of a full-size cake. Using applesauce instead of oil keeps the texture moist while reducing fat, and instant coffee adds authentic mocha depth in an instant. Because it’s a single serving, it’s ideal for satisfying a craving without excess leftovers.
Serving suggestions
Serve warm with a small spoonful of whipped topping, a sprinkle of nutmeg, or a light drizzle of chocolate sauce. Pair with a hot cup of coffee or a mug of plain eggnog for a cozy holiday treat.
