This is a delightful yoghurt cake that is dairy free and packed with flavours from lavender and blackberries.
Cake flour has a lower protein content than ordinary plain flour. It also makes lighter and fluffier baked items. If this is unavailable, you can use the following substitution: for every 100g plain flour, add 2 tablespoons cornflour.
If you do not have sunflower oil you can substitute with any other flavourless vegetable oil.