Microwave Oatmeal Mug Cake - Warm, Soft and fluffy mug cake with oats is perfect for snack, dessert or top with greek yogurt and berries for breakfast.
Check out few other popular mug cake recipes like Microwave Red Velvet Cake, Carrot Cake Mug Cake or Chai Cake in a mug.
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If you have ever craved eating a dessert for breakfast, then this recipe is for you - A soft cake with the addition of old fashioned oats, this can be enjoyed as a snack, dessert or breakfast!
It is a an amazing breakfast oat cake -Light, fluffy and tender cake with chewy bits of rolled oats. It is so good that my kids we have been enjoying this cake almost everyday. Almost like microwave breakfast muffin. Since it is an eggless recipe, it is perfect if you are a vegetarian or if you simply run out of eggs.
Oatmeal Mug Cake
- Easy
- Single serving
- Cooks in under 2 seconds
- Late night munchy
- No eggs <---- Vegetarian
- Quick snack / dessert / Breakfast
- No need to make oat flour
- Microwave cooking
Ingredients
Oats - We used rolled oats (also known as old fashioned oats)
Flour - Regular unbleached all purpose flour
Sugar - We used golden brown sugar
Milk - Use whole or reduced fat milk
Oil - Use a neutral oil like vegetable or canola oil
Flavorings - Ground cinnamon
Leavening - Baking powder
How to make?
Whisk dry ingredients - Add oats, flour, brown sugar, cinnamon, baking powder and salt into a microwave safe mug. Mix until thoroughly combined.
Mix in wet ingredients - Mix in milk and oil to make a smooth batter.
Cook - Microwave for about 1 minute and 45 seconds.
Expert tips
Oats - Use only rolled or old fashioned oats for this recipe and not quick cooking/instant oats.
Brown sugar - Use golden or light brown sugar and not dark brown.
Cooking time - It depends on the size of mug used
Wider mug - 1 minute + 40 seconds
Narrow mug - 1 minute + 50 seconds
Stir batter until lump free – Using a spoon, stir the cake batter until smooth and no lumps remain.
Best eaten hot – Enjoy this cake HOT! As with mug cakes, some might dry out a little when left at room temperature.
Type of mug to use - Any microwave safe coffee mug. The batter will rise significantly when cooking. So, make sure that mug is big enough.
More recipes using oats:
- Oatmeal made in Air Fryer
- Eggless Oatmeal Cookies
- Oat Flour Pancakes
- Instant Pot Creamy Oatmeal
- Baked Oatmeal
- Blender Oatmeal Waffles
How to serve?
For breakfast - Top hot cake with a dollop of sweetened greek yogurt and fresh fruits like berries and/or banana.
For Snack / Dessert - Top with sweetened whipped cream and fresh berries.
Variations
- Chocolate chip - Mix some semi sweet chocolate chips into the batter.
- Spice - Add ground ginger, nutmeg or pumpkin spice along with cinnamon.
- Raisins - Stir in some golden raisins.
- Vanilla - Skip cinnamon and add vanilla extract.
- Walnuts - Mix in some chopped walnuts
Topping ideas
- Fresh strawberries, blueberries or raspberries
- Banana
- Chocolate syrup
- Nutella
- Whipped cream
- Sweetened greek yogurt
- Peanut or almond butter
More Dessert for breakfast ideas:
More Mug Cake recipes to try:
- Mocha Mug Cake
- Apple Mug Cake
- Lemon mug Cake from Scratch
- Vegan Vanilla Mug Cake
- Eggless Banana Mug Cake
- Microwave Almond Flour Mug Cake
- Black Forest Mug Cake
- Mango Mug Cake
- Nutella Brownie Mug Cake
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Oatmeal Mug Cake with Rolled Oats
Ingredients
- ¼ cup rolled or old fashioned oats
- 3 tablespoons all purpose flour
- 3 tablespoons light or golden brown sugar not packed
- ½ teaspoon baking powder
- ¼ teaspoon ground cinnamon
- 1 pinch salt
- ¼ cup milk whole or 2%
- 2 tablespoons vegetable oil
Toppings (optional)
- Sweetened greek yogurt or whipped cream
- Fresh berries
Instructions
- Add first 6 ingredients (oats, flour, brown sugar, baking powder, cinnamon and salt) into a microwave safe mug and stir well.
- Mix in milk and oil, until smooth and well combined.
- Microwave for 1 minute plus 40 seconds (if using a wide mug) or 1 minute plus 50 seconds (if using a narrow mug).
- Tip - DO NOT OPEN MICROWAVE IN BETWEEN
- Remove mug from microwave, top with desired toppings and enjoy!
Notes
Nutrition
Nutritional information is based on third party calculations, should be considered estimates and not be construed as a guarantee. Varying factors such as product types, brands purchased, produce, the way ingredients are processed and more change the nutritional information in any recipe.
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Barbara
Dear Maria, what is the wattage of your microwave? Since you can't open the microwave in between, and the 1m 40s time seems long for 1100 watts, I'm not sure how to make it in my microwave.
Maria Doss
Hi Barbara,
We apologize for a late reply. When cooking for the first time, we recommend checking after 1 min and 30 seconds. If it doesn't look well risen and cooked through, then cook for an additional 10 to 20 seconds. Hope it helps, have a great weekend - Maria
Caroline
I tried this today. The overall consistency was good but I found the hard bits to be disruptive (I would prefer plain porridge to this). Not my cup of tea, but not a bad recipe either 🙂
Maria Doss
Hi Caroline, Hmmm.. not sure about the crunchy bits you are talking about. Did you use steel cut oats instead of rolled oats? Regular oats will soften during the cooking time and will add to the texture but not stay crunchy - Maria