Healthy single-serving desserts are my go-to when I’m craving something just for me! This Oatmeal Mug Cake is a quick and satisfying treat that’s perfect for breakfast, a wholesome snack, or a cozy dessert. Its fluffy texture, combined with the delightful chewiness of oats and gooey chocolate in every bite, makes it an irresistibly delicious option you’ll want to make it on repeat!
All you need are 10 simple pantry ingredients to create this heavenly, healthy dessert! Oatmeal doesn’t have to be boring—try this Oatmeal Mug Cake Recipe, and I’m sure it will completely change your mind!
Are you a fan of the breakfast and sweet combo? Then you should definitely try this Berry Chia Seed Pudding—perfect for an early morning breakfast or a late-night dessert! Looking for something to snack on? How about some oatmeal cookies? My Butterscotch Oatmeal Cookies are a must-try for any cookie lover!
Jump to:
- What is Oatmeal Mug Cake
- Why you’ll love this Quick and Easy Oatmeal Mug Cake Recipe
- What to Serve with Oatmeal Mug Cake
- Ingredients
- How to make oatmeal mug cake in a microwave
- Substitutions/Variations for Oatmeal Mug Cake
- Equipment
- Storing an Oatmeal Mug Cake
- Tips and Notes for Making the Best Oatmeal Mug Cake
- FAQ
- Related
- Pairing
- Oatmeal Mug Cake
What is Oatmeal Mug Cake
Healthy Oatmeal mug cake is a single-serving dish in a mug that can be prepared as a healthy breakfast or sweet dessert in just a few seconds. The beauty of this oats mug cake is that it can be served gluten-free with the personal toppings of your choice.
Creating a dessert like this oats cake microwave recipe couldn’t be easier. With minimal prep and just one dish, you’ll have a warm and comforting treat ready in minutes. Whether you’re enjoying it as a quick oatmeal in a mug breakfast or indulging in a post-dinner oatmeal mug cookie, this recipe is both satisfying and convenient. It’s easy to customize with your favorite toppings like fresh berries, chocolate chips, or a dollop of yogurt, making it a versatile option for any time of day.
Why you’ll love this Quick and Easy Oatmeal Mug Cake Recipe
- Quick and Easy: The oatmeal mug cake is one of the most convenient treats or breakfasts you can prepare since the ingredients are all cupboard staples.
- Customizable Toppings: Using individualized toppings allows you to serve this mug cake to your unique specifications. You get exactly what you want, and so does everyone else. The sky is the limit as you experiment with nuts, fruits, chocolate, and more. Yogurt makes a perfect protein topping for breakfast. For dessert, go crazy with nuts and fresh, seasonal berries. Sweet chocolate chips work, as well.
- Healthy and Nutritious: The oats are a good source of fiber. The combination of scrumptious and healthy isn’t always easy to find. Here it is conveniently in a cup and ready in a few seconds.
- Diet-Friendly Options: Easy Oatmeal mug cakes are easily adjustable (use plant-based milk such as almond or soy milk) to vegan. Fortunately, this is also a gluten-free oat cake recipe. It’s a win-win for all. You can check the label and ensure that your oats are gluten-free for a healthy dessert without flour.
- Adaptable: This mug cake recipe with oatmeal can be followed by using even flours. Check my “Substitution” section to prepare your mug cake with flour.
This oatmeal mug cake is a win-win for all—a healthy, delicious dessert or breakfast option conveniently made in a cup!
What to Serve with Oatmeal Mug Cake
Breakfast Toppings: A dollop of yogurt or some fresh berries can be the ideal topping for a breakfast mug cake. Don’t forget a refreshing glass of milk.
Dessert Pairings: If you enjoy the mug cake for dessert, savor it with a cup of aromatic coffee. My Salted Caramel Latte recipe goes well with this healthy treat. Try it! Have it with vanilla ice cream, honey, or chocolate sauce.
Fresh Fruits: And you cannot go wrong with fresh fruit. Serve with seasonal fruits for a burst of natural sweetness and flavor. I enjoyed mine with fresh raspberries!
Spices: A sprinkle of spices such as cinnamon truly elevates the taste of your oats mug cake into something special. So don’t miss that spice!
These pairings make your oatmeal mug cake versatile, whether for breakfast, dessert, or a quick snack!
Ingredients
These ingredients work together to create a perfectly balanced and satisfying oatmeal mug cake!
- Milk: Provides moisture and helps bind the ingredients together, creating a soft and fluffy texture in the mug cake. You can use almond milk or oat milk or regular milk.
- Maple Syrup: Acts as a natural sweetener, adding a rich, caramel-like flavor while keeping the cake refined sugar-free. You can also you brown or white sugar instead.
- Egg: Adds structure and richness to the cake, helping it rise and stay fluffy during cooking.
- Vegetable Oil: Helps the cake stays moist and tender, preventing it from drying out.
- Vanilla Extract: Enhances the flavor with a subtle sweetness and aromatic depth.
- Whole Grain Rolled Oats: Adds texture and fiber, making the cake hearty and nutritious while maintaining its dessert-like appeal.
- Baking Powder: Helps the cake rise by creating air pockets, resulting in a light and fluffy texture.
- Ground Cinnamon: Adds a warm, aromatic spice that complements the sweetness. So I strongly recommend this spice to be added.
- Salt: Balances the sweetness and brings out the flavors of the other ingredients.
- Mini Semi-Sweet Chocolate Chips: Adds bursts of chocolaty goodness throughout the cake. You can also you dark or white or butterscotch chocolate chips instead.
- Raspberries: Provides a tart, juicy contrast to the sweetness of the cake, adding a refreshing and colorful garnish. Any type of berries, sliced bananas or nuts like walnuts, pecans., etc., goes well with this recipe.
See recipe card for quantities.
How to make oatmeal mug cake in a microwave
If you’re craving a quick and healthy treat, this gluten-free oat cake is the perfect solution! Made with wholesome ingredients, this recipe transforms everyday pantry staples into a delicious dessert or breakfast option. Cooked in the microwave, this oat cake recipe gluten-free variation is ideal for those with dietary restrictions or anyone looking for a naturally fiber-rich treat. Its simple preparation and rich flavor make it a must-try for anyone who loves quick, healthy desserts!
In a small add the ingredients; egg, milk, oil, maple syrup and vanilla extract.
Mix the wet ingredients together using a fork.
Add the dry ingredients; oats, salt, baking powder and ground cinnamon. Mix well.
Transfer the prepared oatmeal cake batter into a mug and add the chocolate chips. Give a quick mix.
Microwave the oatmeal mug cake on high for 2 minutes, then check for doneness. The mug cake is ready when it rises and a toothpick inserted into the center comes out clean. If it’s not fully cooked, microwave for an additional 30-second intervals, checking each time to avoid overcooking.
Once done, let the mug cake cool for 1–2 minutes to allow the flavors to settle and the cake to set properly. For a beautiful and flavorful finish, top with fresh fruits like raspberries, strawberries, or blueberries. Add a garnish of fresh mint for a pop of color and a refreshing aroma. You can also drizzle with honey, maple syrup, or a sprinkle of powdered sugar for extra sweetness. Sit back, savor each bite, and enjoy your perfectly cooked oatmeal mug cake!
Substitutions/Variations for Oatmeal Mug Cake
There are a multitude of variations to preparing an oatmeal mug cake. These below variations make your oatmeal mug cake versatile, nutritious, and a hit with the whole family!
- Add Veggies: The first secret variation, to get more veggies into your kids, is adding grated carrots to the oats. It tastes great, and they will never know. Being a parent can involve a high level of sneakiness.
- Customizable Toppings: Toppings vary according to taste; people can choose their favorites, from chopped nuts, berries, and mini chocolate chips.
- Use Oat Flour: Oat flour makes an interesting addition to or substitution for the oats alone as it makes the texture more cake-like. It also adds a bit of a nutty flavor. Since oat flour has an abundance of fiber and is gluten-free, it makes for a healthy variation.
- Peanut Butter Twist: To create a pleasant flavor surprise, add a bit of peanut butter to the recipe. Kids will love it.
Equipment
Microwave-Safe Mug: Use a sturdy mug (10–12 oz capacity) to mix and cook your cake. I opted to mix the batter in a separate bowl and then transferred it to the mug—both methods work, and using one bowl can mean less cleanup!
Small Bowl: If you prefer to mix ingredients in a separate bowl before pouring them into the mug. Like I did in the recipe.
Fork: For mixing the ingredients directly in the mug.
Measuring Spoons and Cups: To ensure accurate measurements of ingredients like oats, milk, and sweeteners.
Microwave: Essential for cooking the mug cake quickly and evenly.
Toothpick: To check the cake is cooked.
Storing an Oatmeal Mug Cake
Room Temperature:The mug cake can be left unrefrigerated on the counter and covered for a day.
Refrigeration: If you wish to refrigerate it, allow it to cool, then place it in an airtight container and refrigerate for up to five days.
Make Extras: Making enough oatmeal mug cake for leftovers is a clever timesaver, especially if you are rushed in the morning or need a dessert in a hurry.
Reheating an Oatmeal Mug Cake on microwave : The quickest way to reheat your cake is by placing it in a microwave-safe bowl. To keep it moist, add approximately 3 tbsp. of liquid (such as milk) to each cup of mug cake you are microwaving. Cover your bowl and microwave for about 2 minutes. Remove the bowl and stir it well, then sit down and enjoy your breakfast.
Reheating an Oatmeal Mug Cake on stovetop: You can also reheat your oatmeal on the stovetop. Place a cup of the refrigerated oats in a small pan and add about a quarter cup of liquid, either milk or water. Cover the pan and simmer the oatmeal for about 5 minutes. Stir gently and taste test to ensure it is warm enough. You should watch the pan as you reheat your meal to avoid burning it.
Tips and Notes for Making the Best Oatmeal Mug Cake
- Be sure you use enough liquid for a good consistency when you microwave your mug cake for two minutes. Do not overcook them or they will dry out. You want a thick but pourable batter.
- If you prefer, prepare these cakes in an oven at 350 degrees. Just transfer the oven-safe bowl to a baking sheet and bake for about 12 minutes.
- Oatmeal mug cakes can also be baked like muffins in a muffin pan. Just watch them closely to prevent burning.
- These cakes are all about the oatmeal. However, to make them more cakelike, use oat flour as mentioned above or regular flour.
- You can use the same amount of apple sauce to replace the oil.
FAQ
Absolutely! Substitute the egg with 1 tablespoon of flaxseed meal mixed with 2.5 tablespoons of water (let it sit for 5 minutes). You can also use unsweetened applesauce or mashed banana as an alternative.
Yes, instant oats will work, but the texture will be softer and less hearty than with rolled oats. So I personally love rolled oats.
For healthier version you can opt for honey or agave syrup. But even brown sugar and white sugar can be used as substitutes for maple syrup too.
Use plant-based milk (like almond or soy), replace the egg with flaxseed meal or applesauce, and ensure your chocolate chips are dairy-free. Follow the same steps.
Yes, you can! Add 1 tablespoon of your favorite protein powder to the mix for a protein-packed version. You may need to add a splash of extra milk to maintain the right consistency.
Related
Looking for other recipes like this? Try these:
Pairing
These are my favorite dishes to serve with Oatmeal Mug Cake:
Oatmeal Mug Cake
Equipment
- Microwave-Safe Mug
- Measuring spoons and cups
- Microwave
- Toothpick
- Mixing Bowl
Ingredients
- 3 tablespoons whole milk
- 2 tablespoons maple syrup
- 1 medium egg at room temperature
- 1 tablespoon vegetable oil
- 1 teaspoon vanilla extract
- ½ cup whole grain rolled oats
- ½ teaspoon baking powder
- ¼ teaspoon ground cinnamon
- ⅛ teaspoon salt
- 1 tablespoon mini semi-sweet chocolate chips divided
- Fresh raspberries to serve
Instructions
- Grease a single-serving mug with baking spray and set it aside.
- In a medium bowl, whisk together the milk, maple syrup, egg, oil, and vanilla extract using a fork until fully combined.
- Add the rolled oats, baking powder, cinnamon, and salt to the wet mixture. Gently fold them in until just incorporated.
- Fold in the mini chocolate chips, reserving some to sprinkle on top later.
- Transfer the prepared oatmeal mixture into the greased mug and sprinkle the reserved chocolate chips on top for extra flavor.
- Microwave on high for 2 minutes, checking for doneness after 2 minutes. The mug cake is done when it rises and a toothpick inserted into the center comes out clean. If not fully cooked, microwave for an additional 30 seconds.
- Let the oatmeal mug cake cool for 1–2 minutes before enjoying. For a beautiful finish, top with fresh fruits like raspberries and garnish with a sprig of fresh mint. Enjoy!
Notes
- Greasing the mug before pouring the oatmeal batter makes it easier to enjoy and ensures a stick-free oatmeal experience.
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