Oatmeal Mug Cake: A Deliciously Different Way to Have Oatmeal

Hey breakfast lovers! If you’re craving a warm and comforting start to your day, this oatmeal mug cake is about to become your new morning obsession. Imagine the heartiness of your favorite oatmeal combined with the sweetness of a cake, all whipped up in minutes right in your favorite mug. It’s the perfect solution for those busy mornings when you want a homemade breakfast without all the fuss. So grab your ingredients, cozy up with your mug, and treat yourself to a deliciously easy breakfast!

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Oatmeal Mug Cake

A friend of mine has the same breakfast every single morning.

Every morning it’s a warm bowl of oatmeal, topped with a handful of walnuts and chocolate chips, and a splash of milk.

Related recipe: Chocolate chip mug cake

Warm, comforting, and (mostly) healthy. He is a creature of habit and he likes his oatmeal!

Since this site is all about the mug cakes, I decided to make an oatmeal mug cake recipe for all the oatmeal lovers out there like my friend.

Here’s a new way to enjoy your favorite breakfast…

For another quick breakfast that’s delicious and healthy, try this keto mug bread. It tastes just like a fresh English muffin and it only takes less than 2 minutes to make!

Microwave Oatmeal Cake Ingredients

Me and my taste-testers tried several versions of oatmeal mug cakes.

Some with melted butter, some with milk baked in.

Our favorite version was the simplest, and the closest to a simple bowl of oatmeal…

Related post: Healthy Single Serving Microwave Banana Bread in a Mug

Here are the ingredients:

quick oats

an egg

real maple syrup

baking powder

Pinch sea salt

Top with fresh berries, a splash of cream or milk, handful of nuts or chocolate chips.

Related recipe: Single serving microwave chocolate chip cookie

How to Make the Best Oatmeal Mug Cake

For the maple syrup, please for the love of god, use the real stuff.

There is no substitute for real maple syrup. Pancake syrup, table syrup, all that stuff, no.

Real maple syrup is so delicious, and once you’ve had the real stuff, you won’t be able to go back. You can find it in glass bottles, squat plastic jugs, or tin cans.

If you like your mug cakes less sweet, use 1 tablespoon of maple syrup instead of 2 tablespoons.

My daughter and I both loved this recipe the most when we added a splash of milk after the mug cake was cooked so I highly recommend this. Use whatever milk – cow or non-cow – that you like.

Put your mug on a plate to catch any spills when you’re microwaving it.

This mug cake recipe rises up a lot while cooking and settles back down, so choose a mug or ramekin that has extra room.

A good rule of thumb for mug cakes is the batter should only come halfway up the mug before cooking to give enough room for it to expand in the microwave.

For other cozy mug cakes, try this chai spice mug cake or this single-serving gingerbread (one of my personal favorites).

Oatmeal Mug Cake Tips and Substitutions

Chocolate oatmeal mug cake

Add 1 tablespoon of chocolate chips to the batter.

You can also add ½ – 1 tablespoon of cocoa powder to make a double chocolate version.

Related recipe: Healthy double chocolate mug cake

Vegan oatmeal mug cake

To replace the egg, use chia seeds.

Put 1 tablespoon of chia seeds in a small bowl and add 1 tablespoon of water.

Let sit for a couple of minutes to thicken up.

Stir and add instead of the egg.

Cinnamon raisin oatmeal mug cake

Add ¼ teaspoon cinnamon and 2 tablespoons raisins before microwaving.

You might also love this grain-free cinnamon mug cake.

Gluten-free oatmeal cake in a mug

This recipe is gluten-free as written, as long as you’re using gluten-free oats (like these!).

Okay, let’s get to the main recipe!

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