Banana Oat Doughnuts are a simple and easy breakfast treat that can be made with a handy mini donut maker or just baked in the oven. So delicious!

One thing I really love is a good donut to kick off my weekend. But who wants to get ready for the day and go buy some from the donut shop before the day really gets going? I don’t, which is why I love to whip up a batch of mini donuts like these Banana Oat Doughnuts on a Friday afternoon so they are ready and waiting for me to enjoy with my coffee.
I break out the little mini donut maker and whisk all the ingredients in a large bowl. It’s that simple and you can top these with whatever strikes your fancy at the time.

I decided that just a drizzle of icing was enough- they really didn’t need a full glaze coating. I tell you- I never thought I would use my little donut maker as much as I do. But I am sure happy I made the purchase.
Can I bake these in the oven instead?
Absolutely. Just use a regular donut pan and bake these at 350 for 9-12 minutes or until slightly golden and spring back when pressed lightly with your finger. They should feel spongy.



Click HERE for the glaze and topping recipe.
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Baked Banana Oat Doughnuts
- Total Time: 15 minutes
- Yield: About 12 full-size donuts or 24 mini donuts 1x
Ingredients
- 3 cups all-purpose flour
- 1 1/2 cups granulated sugar
- 3 tsp baking powder
- 1 cup (2 sticks) butter, melted and cooled to room temperature
- 3 very ripe bananas, mashed
- 1 cup milk
- 1/2 cup quick-cook oats
- 2 eggs
Vanilla Drizzle Glaze
- 1 cup (120 g) powdered sugar, sifted
- 2-3 tablespoons milk
- 1/4 teaspoon vanilla extract
- Sprinkles, chopped nuts, or shredded coconut, for topping (optional)
Instructions
- Pour the milk and oats into a small bowl and allow the oats to soak for at least 5–10 minutes.
- In a larger bowl, whisk together the flour, sugar, and baking powder. Make a well in the center.
- Whisk in the eggs, then the melted butter. Add the mashed bananas, then the oat-and-milk mixture. Whisk until well combined and smooth.
- Spray donut pans (or a mini donut maker) with cooking spray. Fill each well ¾ full with batter.
- For full-size donuts: bake at 350°F for 8–10 minutes. For mini donuts in a donut maker: cook for 6–7 minutes. Donuts are done when lightly golden and they spring back when pressed lightly.
- Remove and allow to cool on a wire rack. Repeat until all the batter is baked.
Vanilla Drizzle Glaze
- Whisk together the sifted powdered sugar, 2 tablespoons of milk, and vanilla extract until smooth. Add the remaining milk a teaspoon at a time until the glaze is thin and easily drizzleable.
- Drizzle the glaze lightly over the cooled donuts (do not fully submerge them — a drizzle is plenty). Add sprinkles, chopped nuts, or shredded coconut while the glaze is still wet, if using.
Notes
Very ripe, almost black bananas give the most flavor and natural sweetness. The glaze is intentionally light — just a drizzle, not a full dip. Top with whatever sounds good: rainbow sprinkles, finely chopped walnuts, or toasted coconut all work well.
- Prep Time: 8 minutes
- Cook Time: 7 minutes
- Category: Dessert
Frequently Asked Questions
Can I use ripe bananas that are starting to brown for this recipe?
Yes, using ripe bananas that are brown will add more natural sweetness and flavor to your Banana Oat Doughnuts.
What should I do if I don’t have a mini donut maker?
You can bake the doughnuts in a regular donut pan at 350°F for 9-12 minutes until they are slightly golden and spring back when pressed.
How can I adjust the sweetness of the doughnuts if I add toppings?
If you plan to add a glaze or icing, consider reducing the amount of sweetener in the doughnut batter to balance the overall sweetness.

Turned out so well! Thank you!
When do you add in bananas??