This easy and healthy Apple Cake in a Mug is a quick, comforting recipe you can make for dessert, a sweet snack, or even a simple breakfast treat. With a few pantry staples, half an apple, a mug, and a microwave, you can enjoy a soft, moist apple mug cake in under five minutes. If you are looking for a healthy mug cake recipe, a simple microwave apple cake, or a vegan-friendly mug cake option with easy swaps, this recipe is a lovely one to keep on hand.

What is a mug cake?
A mug cake is a single-serving cake that is mixed and cooked quickly, usually in the microwave. Instead of baking a whole cake, you prepare just enough batter for one portion, which makes it perfect for moments when you want something warm and sweet without making a full dessert. The best part is that you do not need special equipment. A microwave-safe mug, a fork, and a few basic ingredients are enough to make a soft, freshly cooked cake in minutes.
Mug cakes are popular because they are fast, convenient, and easy to customize. You can make them chocolatey, fruity, gooey, fluffy, or lightly spiced depending on what you are craving. This apple cake in a mug is especially cosy because the apple pieces soften as the cake cooks, giving each bite a naturally sweet, tender texture. It tastes like a mini apple cake, but it takes far less time than a traditional bake.
This healthy apple mug cake is made with simple, nourishing ingredients, yet it still feels like a proper treat. Whole wheat flour adds a heartier texture, coconut sugar brings gentle sweetness, and olive oil helps keep the cake moist. You can enjoy it plain, add a spoonful of vanilla yoghurt on top, or serve it warm straight from the mug.

How to make a Apple Mug Cake
This apple mug cake starts with a simple base and comes together quickly. The batter is made with flour, a little sugar, baking powder, salt, oil, milk, and apple. You can mix everything in a small bowl first for a smoother batter, then transfer it to a mug, or mix directly in the mug if you want fewer dishes.
- Flour: Whole wheat flour works well because it contains more fibre and protein than refined white flour. It also gives the cake a slightly wholesome flavour that pairs beautifully with apple.
- Sugar: Coconut sugar keeps the recipe refined sugar-free and adds a subtle caramel-like taste. You only need a small amount to sweeten the cake.
- Baking Powder: This helps the mug cake rise and gives it a softer, fluffier texture.
- Salt: A small pinch of salt balances the sweetness and helps bring out the flavour of the apple.
- Oil: Olive oil makes the cake moist and tender. You can skip it if needed, but the texture will be slightly less rich.
- Milk: Milk loosens the batter and helps create the right cake consistency. Dairy milk or plant-based milk both work.
- Apple: Use half an apple, or one very small apple. Chop it into small pieces for juicy apple chunks, or grate it if you prefer the apple to blend into the cake.
- Vanilla Yoghurt: A spoonful on top is optional, but it adds creaminess, extra flavour, and a little more protein.

Ingredient Substitutions
- Flour: This recipe is flexible. You can use plain white flour, wholemeal flour, a gluten-free flour blend, oat flour, or spelt flour. The texture may change slightly depending on the flour you choose.
- Sugar: Any granulated sugar or sweetener can be used. If you use a liquid sweetener, reduce the milk by 1 tablespoon so the batter does not become too runny.
- Oil: Any neutral liquid oil will work, and melted butter can also be used. For an oil-free apple mug cake, omit the oil and add a little extra milk, keeping in mind that the cake may be less moist.
- Milk: Use dairy milk, plant-based milk, or even water if that is what you have available. Plant milk makes this recipe easy to adapt into a dairy-free or vegan mug cake.
The process is super easy:
Combine the dry ingredients, stir in the wet ingredients, fold through the apple, then microwave until the cake is cooked to your liking. The whole process takes less than five minutes, which is why this healthy apple cake in a mug is such a useful recipe for busy days, late-night cravings, or a quick single-serving dessert.
How long to microwave a mug cake:
The exact cooking time depends on your microwave and the texture you prefer. Start with 1 minute, then check the cake. If it still looks very wet in the centre, microwave it for another 15 to 30 seconds at a time. Around 1 1/2 to 2 minutes usually creates a soft, moist cake. If you prefer a slightly gooey mug cake, cook it for a little less time. Always use a microwave-safe mug and take care when removing it, as the mug can become hot.

Are microwaves bad for you?
Many people have questions about microwave cooking. If you are comfortable using a microwave, this recipe is a quick and practical option. For best results, use a microwave-safe mug, avoid metal, and follow the instructions for your appliance. If you prefer not to use a microwave, this specific recipe is designed for microwave cooking, so the timing and texture may not be the same with another method.
How to store a mug cake
Mug cakes are usually best eaten as soon as they are made, while they are warm and soft. However, you can prepare this apple mug cake ahead of time if needed. Cook the cake as instructed, then let it cool completely. Cover it with plastic wrap or transfer it to an airtight container and store it in the fridge.
When you are ready to eat it, enjoy it cold or warm it in the microwave for about 30 seconds. The texture is freshest on the day it is made, but storing it properly helps keep it from drying out too quickly.
More Healthy Mug Cake Recipes
- Chocolate Chip Mug Cake
- Carrot Cake in a Mug
- Hot Chocolate Mug Cake
- Pancake in a Mug
- Cookie in a Mug
If you make this apple cake in a mug, leave a rating and share your feedback in the comments. It is always helpful to know how the recipe turned out, whether you used substitutions, and how long your microwave needed for the perfect texture.

Apple Cake in a Mug Recipe
Equipment
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Microwave
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Microwave-safe mug
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Fork or small spoon
Ingredients
- 30 g whole wheat plain flour 1/4 cup
- 1/2 tsp baking powder
- 10 g coconut sugar 1 tbsp
- pinch of salt
- 1 tbsp olive oil
- 3 tbsp milk
- 1/2 apple around 70g
- vanilla yoghurt for serving optional
Instructions
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Add the flour, baking powder, coconut sugar, salt, olive oil, and milk to a small mixing bowl. Stir with a fork until a smooth batter forms.
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Cut the apple into small bite-sized pieces, or grate it if preferred, then fold it into the batter.
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Transfer the mixture to a microwave-safe mug.
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Microwave for up to 2 minutes, checking after 1 minute and adding more time as needed.
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Let it cool briefly, then serve plain or with vanilla yoghurt on top.
Notes
Microwave times vary. Start with 1 minute, then continue in short bursts until the apple mug cake is cooked to your preferred texture. Cook it a little less for a gooey centre or closer to 2 minutes for a moist cake-like texture.
For the most accurate results, use the gram measurements where provided. Cup measurements are helpful, but weighing ingredients gives a more consistent batter.
Nutrition information is an estimate and may vary depending on the ingredients and measurements used.
Nutrition
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