Mini Lime and Blueberry Cake

Preheat your oven and prepare a small cake tin by greasing or lining it.

Beat the softened butter and caster sugar together until light and fluffy.

Add the egg and vanilla extract, mixing until well combined.

Stir in the lime zest and lime juice.

Fold in the flour and baking powder until a smooth batter forms.

Toss the blueberries in the 1/2 tsp of flour to coat them, then gently fold them into the batter.

Pour the batter into the prepared tin and bake until golden and a skewer inserted into the centre comes out clean.

Allow the cake to cool before removing from the tin and serving.