Vegan Chocolate Oat Cake

The speciality of this cake is the fortunate meeting of oat flour and cocoa: the natural starch content of the oats ensures a moist, dense texture even without eggs, while the acidity of the cocoa reacts with the baking powder, making the batter rise and become light. Don't expect a dry sponge, but rather a rich, brownie-like experience that becomes perhaps even more delicious the next day as the flavours mature.
🕒 Prep Time 15 mins
🍳 Cook Time 35 mins
Total Time 1 hr 50 mins
🍽️ Servings 8 servings
🔥 Calories 320 kcal
🌍 Cuisine International

Ingredients

Equipment Needed

  • 20 cm springform cake tin
  • Large mixing bowl
  • Hand whisk
  • Silicone spatula
  • Wire rack for cooling

Allergen Information

⚠️ Cereals containing gluten (oats)
⚠️ Soya (possible in chocolate)

Instructions

1

Preheat the oven to 180°C / 160°C Fan. Line the bottom of the cake tin with baking paper and lightly oil the sides.

Tip: The paper prevents the bottom from burning, and the oiled side allows the batter to 'climb', baking more evenly.
2

In a large bowl, mix the dry ingredients: oat flour, cocoa powder, sugar, baking powder and salt. Whisk thoroughly to get a uniform, light brown powder.

Tip: Salt enhances the chocolate flavour, and thorough mixing prevents the baking powder from concentrating in one spot (homogenisation).
3

Mix the liquid coconut oil with the room temperature plant milk and vanilla.

Tip: It is important that the milk is not cold, otherwise the coconut oil will solidify and curdle immediately (emulsion problem).
4

Pour the liquid into the dry mixture and mix with a spatula or wooden spoon just until the flour disappears. Do not overwork!

Tip: If mixed too long, the batter becomes gummy and heavy after baking (gluten development and starch gelatinisation).
5

Chop the dark chocolate into rough chunks and fold into the batter.

Tip: The larger chocolate chunks melt during baking, creating runny 'pockets' in the cake.
6

Pour the mixture into the tin, smooth the top. Bake for 30-35 minutes. It's ready when the top is firm and there is a lovely chocolate smell, but a skewer inserted might still have a few moist crumbs clinging to it.

Tip: Do not dry it out! Vegan cakes firm up while cooling.
7

Leave to cool in the tin for 10 minutes, then remove the ring and cool completely on a wire rack before slicing.

Tip: The structure of the hot cake is still unstable; during cooling the starch retrogrades (recrystallises), making it sliceable.

Recipe FAQ

Why did the cake become crumbly?
You probably mixed the batter for too long, or added too much flour. Oats tend to absorb a lot of liquid, so accurate measuring is important.
Can I substitute the coconut oil?
Yes, any neutral vegetable oil (e.g. sunflower) works, but coconut oil gives a nice, more buttery texture after cooling.

Ingredients

  • 200 g Oat flour (finely ground)
  • 50 g Cocoa powder (unsweetened)
  • 200 ml Plant-based milk (room temperature)
  • 100 g Coconut oil (liquid)
  • 100 g Sugar
  • 1 tsp Baking powder
  • 1 tsp Vanilla extract
  • 100 g Dark chocolate (min. 70%)
  • 1 pinch Salt