Olive Oil Oat Flour Cake

This Honey and Olive Oil Oat Flour Cake is soft, fluffy and delicious. It's gluten-free, and dairy-free and comes together in one bowl!

This recipe was originally posted in March 2020 and was updated and retested with new ingredients in May 2022.

This oat flour cake is the perfect gluten and dairy-free treat. It is made with oats and sweetened with honey. It only requires one bowl so grab the ingredients and let's start making this cake!

Oats aren't just for oatmeal anymore, they can be used in so many different recipes. I use oats in many baked goods, check out my Oat Flour Peanut Butter and Jelly Banana Bread and Peanut Butter Gluten-Free Cookie Bars. Oats are also a great addition to smoothies, pancakes, waffles and meatloaf.

Jump to:

• 🌟Why You'll Love this Recipe
• 🥘Ingredients and Substitutions
• 🔪Instructions
• 📋How to make oat flour
• 💭Recipe FAQs
• 👩🏻‍🍳Chef Tips
• 🥗Serving Suggestions
• More Baked Goods
• Recipe
• Comments

🌟Why You'll Love this Recipe

• One bowl recipe. This cake requires just one large mixing bowl and one square baking pan. Who doesn't love a recipe that requires only a few dishes?!
• Simple ingredients. There are no crazy ingredients required for this recipe. It's highly likely you already have everything on hand at home.
• Perfect for those with allergies. This cake is gluten-free, dairy-free and nut-free!

🥘Ingredients and Substitutions

• Oat flour- use gluten-free oats, if needed, otherwise, regular rolled or quick cook oats will work great. Oats are naturally gluten-free but are sometimes processed with other grains, so be sure the package says gluten-free if you have sensitivities.
• Gluten-free flour- you must use a 1:1 flour for this recipe. I prefer Bob's Red Mill or King Arthur brands.
• Olive oil- olive oil gives such a distinct flavor to this cake and pairs very well with honey. You can also use avocado oil, coconut oil or vegetable oil.

See the recipe card below for the remaining ingredients and quantities.

🔪Instructions

1. Begin by preheating the oven to 350 degrees F. Grease an 8x8-inch aluminum baking dish with cooking spray or line it with parchment paper.
2. Next, mix the cake batter. Add all of the ingredients to a large bowl and mix until well combined and smooth.
3. Bake the cake for 25-30 minutes, or until a toothpick comes out clean.
4. Frost the cake. Once the cake has cooled, frost it, if desired, cut it into equal-sized pieces and enjoy!

📋How to make oat flour

Oat flour is so easy to make, it is just ground oats! You can buy pre-made oat flour but it's so much cheaper to make it yourself. Simply add quick cook or rolled oats to your blender or food processor; and blend until flour forms, approximately 30 seconds - 1 minute.

💭Recipe FAQs

👩🏻‍🍳Chef Tips

• Measure your oat flour amount AFTER you have ground it into flour, this makes for a more accurate ratio in recipes. Also, make sure the oat flour is ground finely like traditional flour, otherwise, the cake will have a weird texture.
• Use a metal or aluminum pan for this recipe, using a glass pan will result in uneven baking. The inside of the cake will be underdone and the outside will be very dark and possibly overcooked.
• Make sure the eggs are at room temperature before adding them to the batter.
• Ensure your baking soda and baking powder are still good to use. They should be stored in a dark, dry place for no more than 6 months. Use this resource to test if your leavening ingredients are still good.

🥗Serving Suggestions

This cake makes an excellent dessert for any night of the week. Serve it after enjoying my Meatball and Couscous Soup, Mediterranean-Style Pita Pockets, or Sweet Chili Chicken Stir Fry.

If you're looking for something to wash it down, try my Vegan Spiked Hot Chocolate or Vodka Sour.

More Baked Goods

Recipe