Oat Flour Mug Cake

Oat flour mug cake is the perfect single serve dessert and so easy to make. Ready in just minutes, this healthy oat mug cake is vegan, gluten free and dairy free. This oat flour cake recipe is great with chocolate chips, chopped nuts, dried fruits or more.

Course Dessert

Cuisine American

Keyword oat flour mug cake, oat mug cake, vegan oat flour mug cake

Prep Time 1

Cook Time 1

Cooling time 3

Total Time 5

Servings

Calories 420kcal

Author Samantha Rowland

Ingredients

Instructions

In a 8-10 oz mug or ramekin, add the avocado oil and coconut sugar. Stir well.
Add the oat flour, dairy free milk and baking powder to the mug. Stir until the lumps are removed.
Sprinkle in the chocolate chips.
Cook in the microwave for 60 seconds. Allow to cool 2-5 minutes before enjoying.

Notes

Top tips

Be sure you are using fresh baking powder to ensure that your mug cake rises as much as possible. Baking powder starts to lose it's rise within about 6 months.
If you are using a large mug, don't expect the mug cake to look very tall. I tested this recipe in a 10oz mug and photographed it in an 8oz mug.
Let the oat mug cake rest for 2-5 minutes before enjoying to ensure the best texture. This allows the center to set a bit while the outside of the cake cools slightly.
If you do not have oat flour on hand, you can make your own oat flour by grinding up oats in the blender or you can measure out 1/3 cup of rolled oats or quick cooking oats into a blender with the rest of the ingredients (except the chocolate chips) and blend well until smooth. Pour this batter into a mug and cook on high in the microwave.
To help ensure the mug cake doesn't stick to the sides and can rise well, I recommend that you use a glazed ceramic mug with a shiny finish.
As the mug cake cools, expect it to start settling down in the mug. It will be the highest it is going to get while it's cooking in the microwave and it will start to fall as it cools. This is normal and expected.

Can you make a oat mug cake in the oven?

If you prefer not to use the microwave, you can bake this oat flour cake in the oven in oven safe ramekins at 350F for 14-16 minutes.

Can you make a mug cake in the air fryer?

Yes. Use an oven safe ramekin and bake in the air fryer at 345F for 8 minutes.

Storing leftovers

This recipe was written to be a single serve dessert that you enjoy right after cooking. If you know you want to make this in advance and store it for later, I recommend that you make it without the baking powder. This means that the cake won’t rise as much, but I find that the slightly denser texture is really delicious after allowing the mug cake to cool.

Allow the mug cake to cool completely on the counter, then cover and store in the fridge for up to 2 days.

I have not tried freezing leftovers.

Nutrition