This keto pumpkin pie mug cake is fall dessert in about 2 minutes per mug. Coconut flour, pumpkin puree, eggs, and five warm spices (cinnamon, ginger, nutmeg, allspice, and cloves) cook into a soft, tender cake in the microwave, and homemade whipped cream sweetened with monk fruit goes on top. Coconut flour is the base, so it is nut-free too, and the batter makes 4 mugs. Pumpkin season also means my Pumpkin Cranberry Bread and Pumpkin Cheesecake Fluff, two more for your fall rotation.
There’s something about Pumpkin Pie Mug Cake that nails exactly what an autumn dessert should be — a tender coconut flour crumb, the heady fragrance of five pumpkin pie spices hitting you the moment the mug comes out of the microwave, and a cloud of freshly whipped cream that softens into the top of the cake the second you spoon it on. This is not a complicated recipe, but it delivers honest pumpkin pie flavor in individual portions made entirely in coffee mugs and your microwave.
The batch makes 4 mug cakes total, each holding about 100g of batter. While the batter comes together in the mixing bowl, the homemade whipped cream — made with heavy cream and monk fruit sweetener — chills in the refrigerator, ready to be dolloped over each finished cake with a dusting of cinnamon on top. The spice list is long by mug cake standards (cinnamon, allspice, ginger, nutmeg, and cloves all go in), but every one of them is a pantry staple, and together they are what gives these cakes their genuine pumpkin pie character.
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💛 Why you’ll love this recipe
- Everything cooks in a coffee mug. No baking dish, no ramekin, no springform pan needed — the mug is both the baking vessel and the serving vessel, all in one.
- True pumpkin pie spice depth. The batter includes cinnamon, ginger, nutmeg, allspice, and cloves — the full spectrum of pumpkin pie spices — rather than just a sprinkle of one or two.
- Homemade whipped cream, not from a can. Heavy cream and monk fruit sweetener are whipped together for the topping, giving each mug cake a fresh, real cream finish.
- Nut-free by design. Coconut flour forms the base instead of almond flour, so these are safe for anyone with tree nut allergies or intolerances.
- No refined sugar in the batter or topping. Monk fruit sweetener stands in for granulated sugar throughout — in the pumpkin batter and in the whipped cream — so there is no refined sugar anywhere in the recipe.
- Four individual portions, no slicing required. Each mug is one complete serving, and since the mugs cook one at a time, yours is ready to eat while the others finish.
⏲ How to make this recipe
To a mixing bowl, add heavy cream and 2 tbsp monk fruit sweetener and mix on high with electric mixer until whipped. Cover with lid or plastic wrap and transfer to refrigerator to chill.
To a mixing bowl, add eggs, pumpkin puree, and vanilla extract.
Using an electric mixer, mix together until smooth and ingredients are fully incorporated.
Add coconut flour, remaining monk fruit sweetener, cream of tartar, ½ tsp cinnamon, baking soda, allspice, ginger, nutmeg, and cloves and mix again to combine all ingredients.
Coat inside of coffee mugs with nonstick cooking spray. Spoon ¼ of pumpkin mixture into each coffee mug.
Microwave them one-by-one until cakes are cooked throughout, about 2 minutes.
Serve mug cakes with a dollop of whipped cream and sprinkle of remaining ¼ tsp cinnamon on top.
👉 Easy ingredient swaps
- Dairy-free topping: The batter itself contains no dairy — the only dairy in the recipe is the heavy cream for the whipped topping. To go dairy-free on the topping, refrigerate an unopened can of coconut cream overnight. The fat solidifies on top; scoop it out and whip it as a substitute. Or skip the topping entirely — my own recommendation for anyone avoiding dairy.
- Nonstick cooking spray: Coat the inside of each mug thoroughly before spooning in the batter. A well-coated mug lets the cake pull cleanly away from the sides as you eat down through it. Don’t rush this step.
- Monk fruit sweetener: This recipe calls for classic monk fruit sweetener — 2 tablespoons (24g) in the batter and 2 tablespoons (24g) in the whipped cream, 4 tablespoons (48g) total. Use the classic variety, not the golden or powdered versions, which perform differently in both batter and whipped cream.
✨ Variations
- Oven-baked version: Spoon the batter into oven-safe mugs or ramekins and bake at 350°F for 10–15 minutes. The texture will be firmer than the microwaved version. If the cakes firm up after sitting, a quick microwave reheat will soften them back up.
- Single serving: Because the mugs cook one at a time — about 2 minutes each — you can stop after one or two instead of making the full batch of 4. Each mug holds about 100g of batter, which is roughly ¼ of the total mixture.
- No topping: I confirmed in the comments that these mug cakes work without the whipped cream if you want to skip it — the spiced pumpkin batter stands on its own.
〰️ How to serve
- Serve each mug immediately from the microwave with a generous dollop of the chilled whipped cream and the reserved ¼ teaspoon of cinnamon dusted over the top — that finishing step is built right into the recipe.
- These are designed to be eaten right away, while the cake is still hot and the whipped cream is just starting to soften into the top.
- The recipe was written for those after-dinner moments when you want something sweet but don’t want to wait on an oven.
- For more pumpkin recipes on Real Balanced, the Cream Cheese Pumpkin Muffins and the Pumpkin Pie Cake Pops are both worth keeping in your fall lineup.
💬 FAQs
Can I bake these in a regular oven instead of the microwave?
Yes. Spoon the batter into oven-safe mugs or ramekins and bake at 350°F for 10–15 minutes. Oven-baked versions tend to firm up more than microwaved ones. If yours tightens after cooling, a brief stint back in the microwave will soften it.
Can I make these without dairy?
Yes — the batter itself is dairy-free. The only dairy component is the heavy cream used for the whipped topping. My recommendation is to skip the whipped cream entirely if you don’t eat dairy. For a non-dairy alternative, refrigerate a can of coconut cream overnight; the solidified fat that rises to the top can be scooped out and whipped in its place.
Do all 4 mugs go in the microwave at the same time?
No — the recipe calls for microwaving them one at a time, about 2 minutes per mug. Working through them individually helps each cake cook evenly all the way through rather than producing uneven results from crowding the microwave.
How much batter goes in each mug, and does mug size matter?
Each mug gets about 100g of batter — roughly ¼ of the total mixture. A standard coffee mug is the right size. Make sure your mugs are microwave-safe, and coat the inside thoroughly with nonstick cooking spray before filling so the cake doesn’t stick to the sides as you eat through it.
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Keto Pumpkin Pie Mug Cake
Ingredients
- ¼ cup 60mL heavy whipping cream
- 4 tablespoons 48g classic monk fruit sweetener, divided
- 4 eggs
- ½ cup 122g pumpkin puree
- ½ teaspoon pure vanilla extract
- ¼ cup coconut flour, plus 1 tablespoon (35 grams)
- 1 teaspoon cream of tartar
- ¾ teaspoon cinnamon, divided
- ½ teaspoon baking soda
- ¼ teaspoon ground allspice
- ¼ teaspoon ground ginger
- ¼ teaspoon ground nutmeg
- ⅛ teaspoon ground cloves
- Nonstick cooking spray
Instructions
- To a mixing bowl, add heavy cream and 2 tbsp (24g) monk fruit sweetener and mix on high with electric mixer until whipped. Cover with lid or plastic wrap and transfer to refrigerator to chill.
- To a mixing bowl, add eggs, pumpkin puree, and vanilla extract and, using an electric mixer, mix together until smooth and ingredients are fully incorporated. Add coconut flour, remaining 2 tbsp (24g) monk fruit sweetener, cream of tartar, ½ tsp cinnamon, baking soda, allspice, ginger, nutmeg, and cloves and mix again to combine all ingredients.
- Coat inside of coffee mugs with nonstick cooking spray. Spoon ¼ of pumpkin mixture (~100g of mixture per mug) into each coffee mug and microwave one-by-one until cakes are cooked throughout, about 2 minutes.
- Serve mug cakes with a dollop of whipped cream and sprinkle of remaining ¼ tsp cinnamon on top.
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