Tender, flavorful carrot cake made in about five minutes to satisfy a sweet craving. This single‑serve carrot mug cake with optional cream cheese icing is an easy, comforting dessert after a long day.
I love carrot cake—especially homemade with plenty of shredded carrots and a rich cream cheese frosting. But a whole cake is often too tempting to have around, so a single-serve mug cake is the perfect solution when I want cake without leftovers.
Ingredients
This recipe uses common pantry ingredients—chances are you already have everything on hand.
Shredded Carrots – Freshly shredded or prepackaged both work fine.
Salted Butter – I use salted butter in most baking. If you use unsalted, add a pinch of salt. For a dairy‑free option substitute coconut oil.
All‑Purpose Flour – Regular unbleached all‑purpose flour gives the best texture.
Brown Sugar – Brown sugar adds a deeper flavor. White sugar can be used in a pinch; add a little molasses if you want to mimic brown sugar flavor.
Baking Powder – Make sure it’s fresh so the cake rises properly.
Whole Milk – A splash keeps the cake moist. Almond or coconut milk works for dairy‑free versions.
Vanilla Extract – Enhances all the other flavors.
Cinnamon – A classic spice for carrot cake; optional additional spices are listed below.
How to Make Carrot Mug Cake
Step One: Place the shredded carrots and butter in a microwave‑safe mug and microwave until the carrots soften and the butter melts, about 45 seconds.
Top Tip
Softening the carrots first prevents them from staying too firm, since mug cakes cook quickly.
Step Two: Stir in vanilla, milk, and brown sugar. Add the flour, cinnamon, and baking powder and mix until smooth.
Step Three: Microwave until the cake rises and the top looks just slightly damp. In my microwave this takes about 1 minute 30 seconds; microwaves vary, so check early if yours is powerful.
Top Tip
If you have a high‑power microwave, test at one minute and add time in short bursts to avoid overcooking.
Cream Cheese Icing Ingredients
Cream Cheese – Full‑fat gives the best texture; low‑fat also works.
Powdered Sugar – Gives a smooth, non‑gritty frosting.
Milk – Just a teaspoon or two to thin the frosting to a spreadable consistency.
Frosting Instructions
Step One: For a single serving, simply stir the cream cheese, powdered sugar, and a dash of milk in a small bowl with a fork or whisk. Spread on the warm mug cake and enjoy.
Variations
Nuts – Add chopped walnuts or pecans for crunch. Toast them at 400°F for 6–7 minutes for extra flavor.
Raisins – Stir in a handful for a classic carrot cake touch.
Spices – Try ginger, nutmeg, or a dash of pumpkin pie or apple pie spice along with cinnamon.
White Chocolate – Drop white chocolate chips on top right after microwaving so they melt into the cake.
Mango – Mango pairs surprisingly well with carrot; serve alongside a mango dessert for a unique combo.
Breakfast – Skip the icing and top the cake with cottage cheese for added protein.
Common Questions
What temperature should a mug cake be baked at?
You can bake this in an oven if you prefer. Use an oven‑safe mug at 350°F for 20–25 minutes, or divide the batter between two ramekins and bake 15–18 minutes.
Why doesn’t this recipe have egg?
This mug cake is eggless by design—baking powder gives the rise and a light texture. Eggs can sometimes make mug cakes dense.
Why is my carrot mug cake dry or too gooey?
Dry cake usually means it was microwaved too long; gooey cake means it needs a little more time. Microwaves vary, so adjust cooking time in small increments.
Can I make this with almond flour?
You can try a gluten‑free version using almond flour and a suitable sweetener. Many recipes combine almond flour with a small portion of coconut flour (about 2–3 parts almond flour to 1 part coconut flour) to get a better texture. If you test it, adjust liquid and binders as needed.
Can I make this vegan?
Yes—since it’s already eggless, use coconut oil instead of butter and almond or other plant milk in place of whole milk.
Like the recipe? Leave a comment and rating on the original post to share feedback.
📖 Recipe
Carrot Mug Cake Recipe
Ingredients
- 1 tablespoon salted butter
- 1/4 cup shredded carrots
- 1 teaspoon vanilla extract
- 3 tablespoons milk
- 2 tablespoons brown sugar
- 1/4 cup all-purpose flour
- 1/4 teaspoon cinnamon
- 1/2 teaspoon baking powder
Cream Cheese Icing (optional)
- 1 tablespoon cream cheese
- 2 teaspoons powdered sugar
- 1–2 teaspoons milk
Instructions
-
Add butter and shredded carrots to a microwave‑safe mug. Microwave until softened, about 45 seconds.
-
Stir in vanilla, milk, and brown sugar, then add flour, cinnamon, and baking powder. Mix until just combined.
-
Microwave the mug cake for about 1.5 minutes, or until the top looks slightly damp but set.
Cream Cheese Icing
-
Whisk cream cheese, powdered sugar, and a splash of milk until smooth. Spread over the warm cake and serve.
Nutrition
Carbohydrates: 59 g
Protein: 6 g
Fat: 18 g
Sugar: 32 g
Originally published April 7, 2022. Revised and republished December 23, 2022.