Preheat your oven to 180c fan and line a cupcake tray with paper liners.
Combine your soy milk and apple cider vinegar together and mix to combine. Set this aside for a few minutes to thicken and form your vegan buttermilk.
Meanwhile, rub the sugar and lemon zest together to infuse with all of the citrus flavour! Cream together your olive oil and sugar in a large mixing bowl to fully combine, them whisk in the buttermilk.
Sift your dry ingredients, then fold the wet and dry mixture together. Carefully stir in the blueberries to evenly distribute the divide your batter between the cupcake cases. I like to use a 1/4 cup measure or large ice cream scoop to do this.
Bake for 25 minutes until beautifully risen, then allow to cool completely on a wire cooling rack.
For that delicious vegan buttercream, use an electric hand whisk or stand mixer to beat your room temperature butter until light and fluffy. Gradually add in the icing sugar and a dash of food colouring and continue to mix.
Once your frosting is super thick and creamy, transfer this to a piping back and decorate each of your cupcakes with a generous buttercream swirl! Top with cute easter decorations and enjoy!