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Vegan Vanilla Traybake with sprinkles

Easy Vegan Vanilla School Cake (Vanilla Sheet Cake with Sprinkles)

A simple and adaptable vanilla vegan sponge
5 from 62 votes
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Course: Baking
Cuisine: British
Diet: Vegan
Keyword: Vegan Baking
Prep Time: 5 minutes
Cook Time: 25 minutes
Total Time: 30 minutes
Servings: 9 slices
Calories: 333kcal
Author: Freya


  • 1 9" Brownie Pan lined


  • 1 cup Soy Milk or plant-based milk of your choice
  • 1 cup White Sugar
  • ¼ cup Oil I use vegetable or sunflower
  • 1 tablespoon Egg Replacer I like to use Orgran
  • 3 tablespoon Water
  • 1 teaspoon Vanilla Extract
  • cups Plain Flour
  • ¼ cup Cornflour
  • 2 teaspoon Baking Powder
  • pinch Salt


  • 200 g Confectioners Sugar (icing sugar)
  • Water for mixing
  • Sprinkles


  • Preheat oven to 170c.
  • In a blender, whizz together the sugar, oil, water, egg replacer, milk and vanilla extract until smooth.
  • Pour this mixture into a mixing bowl.
  • Sift together the flour, cornflour, salt and baking powder over the top of the wet ingredients.
  • Using a whisk, mix together until there are no lumps.
  • Pour into your prepared cake tin. The batter will be quite thin.
  • Bake for between 25-30 minutes or until light golden and springs back to the touch.
  • Leave to cool, in the tin, on a cooling rack.

To make the icing

  • Once your cake is cool, you can ice it! Whisk together the icing sugar and a little water until you have a thick but smooth and pourable icing. This will only need 2-3 tablespoon cold water. Add a little more, drop by drop. If you make it too runny, add a little more icing sugar.
  • Spread over the cake, taking care not to go over the edges, then sprinkle generously with sprinkles/hundreds thousands.
  • Cut into squares once the icing has set (a couple of hours).
  • Store in a tin for up to a week.
Tried this recipe? Mention @sweeterthanoats or tag #sweeterthanoats!


Calories: 333kcal | Carbohydrates: 65g | Protein: 3g | Fat: 7g | Saturated Fat: 1g | Polyunsaturated Fat: 2g | Monounsaturated Fat: 4g | Trans Fat: 1g | Cholesterol: 4mg | Sodium: 115mg | Potassium: 67mg | Fiber: 1g | Sugar: 45g | Vitamin A: 113IU | Vitamin C: 2mg | Calcium: 95mg | Iron: 1mg