Blueberry Lemon Oat Cake

Oat cakes are my favorite breakfast treat, and this blueberry lemon oat cake comes together in minutes in the blender. Made with wholesome ingredients, like oats, nut milk, egg, and blueberries, this is a cake you can enjoy for breakfast without the afternoon sugar crash. Naturally gluten and dairy-free, and so simple to make vegan, this is a crowd-pleasing breakfast.

Blueberry Lemon Oat Cake

Cake for breakfast! This version is packed with healthy fiber from oats and berries and fat and protein from eggs and nut milk to keep you satisfied until lunch.
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Course Dessert


  • ½ cup rolled oats (47 grams)
  • zest of 1 lemon (about 1 tablespoon)
  • ½ teaspoon baking powder (4 grams)
  • 1 tablespoon honey
  • 1 egg or 1/4 cup egg whites
  • ½ teaspoon pure vanilla extract 4 grams
  • ½ cup unsweetened nut milk, such as almond, or any type of milk (see notes below) (125 ml)
  • handful fresh blueberries


  • Preheat the oven to 375F.
  • Add the oats, lemon zest, baking powder, honey, egg, vanilla extract, and nut milk to a blender and blend until completely incorporated into a batter, about 1 minute.
  • Pour the batter into a ramekin or divide it among the wells of a muffin tin. Any oven-safe dish will work, as long as the batter fills no more than 3/4 of the dish (the batter will rise and expand in the oven). Top with the blueberries.
  • Bake for 30 minutes or until the center of the cake is set and no longer jiggly.


Want to make this recipe vegan / plant-based? Simply swap out the egg for a flax egg or other vegan egg substitute. Use agave or maple syrup instead of honey. 
You can use any plant-based milk (or even dairy milk here). I prefer unsweetened almond milk. 
Feel free to use your sweetener of choice here: honey can be swapped with agave, maple syrup, date syrup, etc. 
Try changing out the vanilla extract for almond extract for a subtly nutty flavor. 
These make an impressive (and adorable) brunch, when served in individual ramekins and garnished with fresh berries. 
For extra sweetness, garnish the baked cakes with a bit of powdered sugar. 
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