Mini Orange Oatmeal Cake

This Orange Oatmeal Cake recipe is a dream, the mini cake’s tender crumb perfumed with oranges makes it ideal for breakfast, an addition to your brunch table or as an afternoon snack or dessert. This single serving cake is made with oats, orange juice and a few other pantry staples. Bake in a small baking dish or use the batter to make 2 muffins.

A slice of orange oatmeal cake topped with powdered sugar on a plate next to a cup of coffee and a bowl of fresh blueberries

Breakfast Cake

A breakfast cake and other similar treats always seem to make mornings feel special.

I’m not a big breakfast eater so by mid morning, I’m usually in the mood for something subtly sweet, satisfying and the ideal accompaniment to my freshly poured cup of coffee. This is the time when a mini orange oatmeal cake seems to come in handy.

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RELATED: 20 Single Serving Breakfast Recipes Worth Waking Up To


See the recipe box below for ingredient amounts and full recipe instructions.

  • orange juice
  • oats
  • flour
  • sugar
  • baking soda
  • butter
  • egg
  • vanilla extract
  • powdered sugar (optional)

See ways to use leftover ingredients below.

How To Make Oatmeal Cake

  1. An oatmeal cake is made by combining old-fashioned rolled oats with a splash of orange juice in a small saucepan. As the orange juice and oats simmer, the oats become soft. You’re basically cooking the oats in orange juice instead of the traditional way of cooking them in water.
  2. After the oats have softened and cooked, remove the pan from the heat and set it aside to cool. Meanwhile, whisk together flour, sugar, and baking soda in a medium sized bowl.
  3. In a separate small bowl, whisk together melted butter, an egg and a touch of vanilla.
  4. Combine the wet ingredients with the dry ingredients and pour into a small baking dish. The oat cake bakes at 350 degrees F for about 25 minutes.
A mini oatmeal cake in a small baking dish topped with powdered sugar on a wooden trivet next to half an orange and a small bowl of blueberries all on a metal tray

Best Baking Dish For Mini Cakes

For this oatmeal cake, I use a 5-inch square baking dish. A 5 inch by 5 inch baking pan has an area of 25 square inches.  If you have a 4 inch by 6 inch baking pan, it has an area of 24 square inches (4 inches x 6 inches) and should work just fine.  Also if you have a 5 – 6 inch diameter baking dish, that should work as well.

For best results, use a dish of similar size. You can also use this cake batter to make 2 muffins in a muffin pan or you can bake 2 smaller mini cakes in oven safe ramekins.

RELATED: Single Serving Comfort Food Recipes

Ways To Use Leftover Ingredients

If you have any ingredients left over from this orange oatmeal cake, you might like to consider using them in any of these single serving and small batch recipes.

Other Mini Breakfast Cakes And Muffin Recipes

I love this oatmeal cake because it’s incredibly tasty and so easy to make on a whim.

If you like this mini oatmeal breakfast cake, you might also like to try a few of our favorite breakfast breads and muffins…

A fork piercing the top of a slice of orange oatmeal cake topped with powdered sugar next to a coffee mug and a small bowl of blueberries

For more information on the cooking and baking dishes I use in our “recipes for one”, please visit our FAQ page.

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Mini Orange Oat Breakfast Cake | One Dish Kitchen

Mini Orange Oat Breakfast Cake

Prep Time: 10 minutes
Cook Time: 20 minutes
5 minutes
Total Time: 35 minutes
Course: Breakfast/Dessert
Cuisine: Breakfast
Keyword: oat breakfast cake
Servings: 4 people
Calories: 206kcal
Author: Joanie Zisk


  • 1/2 cup orange juice
  • 1/4 cup oats
  • 1/2 cup all-purpose flour
  • 1/4 cup sugar
  • 1/2 teaspoon baking soda
  • 2 tablespoons butter , melted
  • 1 large egg
  • 1/8 teaspoon vanilla extract
  • powdered sugar , optional


  • Heat oven to 350 degrees F (177 degrees C).
  • Bring orange juice to a simmer in a 1-quart saucepan. Stir in the oats.
  • Cook about 5 minutes over medium heat, stirring occasionally.
  • Remove from heat and set aside to cool.
  • Whisk together flour, sugar, and baking soda in a medium sized bowl. 
  • In a separate small bowl, whisk together melted butter, an egg and a touch of vanilla.
  • Combine the wet ingredients with the dry ingredients and pour into a small 5-inch baking dish or use a dish of similar size.
  • Bake for 20-25 minutes or until a wooden toothpick inserted in center comes out clean.
  • Let cool on a wire rack.
  • Top with powdered sugar, if desired.


Serving: 1square slice | Calories: 206kcal | Carbohydrates: 31g | Protein: 4g | Fat: 7g | Saturated Fat: 4g | Cholesterol: 61mg | Sodium: 205mg | Potassium: 114mg | Sugar: 15g | Vitamin A: 305IU | Vitamin C: 15.5mg | Calcium: 13mg | Iron: 1.2mg
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The information shown is an estimate provided by an online nutrition calculator. It should not be considered a substitute for a professional nutritionist’s advice.

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16 thoughts on “Mini Orange Oatmeal Cake”

  1. Simply delicious! I did add orange zest to the batter to bring out the orange flavor a bit more. Love these amazing small portion recipes.

  2. 5 stars
    Made this during my isolation due to the Coronavirus, I only had one fresh orange so I squeezed that and added lemon juice to make the 1/2 cup and to cut calories I used Truvia instead of sugar. It came out delicious. So light and tasty. I will be making this again!

    1. I’m so happy you enjoyed the cake. Thank you for sharing the changes you made to the recipe – I know it will help other readers who might want to make it.

    1. Hi Eva,

      We are currently in the process of converting all of our recipes to metric, it’s a slow process but were working through it. I went ahead and updated this one today.
      Hope you enjoy the recipe and have a wonderful weekend!


  3. Joan – great recipe . This is the third dessert recipe I’ve tried and all have been very good . Can’t wsit to test them all. This cake had the perfect level of sweetness.

    1. Barb,
      Thank you so much for letting me know that you enjoyed the recipe. I’m so happy you liked the cake and also the other desserts you’ve tried. Your comment truly makes my day.


  4. 5 stars
    This was perfect for me to bake for breakfast for the kids. They wanted something sweet to eat and the recipe was just the perfect size to make 2 portions for me.

  5. Denay DeGuzman

    5 stars
    I absolutely loved this beautiful, tender, mini orange oat breakfast cake! It was perfect. Just lightly sweet and so satisfying! I enjoyed mine with a nice cold glass of milk, but when my friend came over to visit she enjoyed her piece with a mug of hot tea.

  6. 5 stars
    I made this and it was fantastic!!!!! However was sure I had orange juice, wrong, what to do, searched and I found margarita mix. It had orange, lemon and lime so I figured can’t be all bad. This is a very moist cake perfect for one or two. Will make it often, thank you.

    1. Hi Lorie,
      What a great idea! So glad the margarita mix worked for you and I’m so happy you enjoyed the cake!

  7. 5 stars
    I just love when breakfast seems more like dessert! This cake was amazing and I loved every single bite! I’m going to try the Blueberry Crumble For One next.

  8. 5 stars
    Thank you for the amazing recipes. You have helped my to make life easier for me. I look forward to each recipe as my cooking skills develop with confidence. You are amazing too.

    1. Hi John,
      I’m so happy you are enjoying the recipes. Thank you so much for letting me know.
      Have a wonderful weekend!

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