I use Swiss meringue buttercream for my cakes as it is so beautifully light and smooth. At the minute I offer the following options flavour wise:

Vanilla sponge with vanilla buttercream and filled with a choice of the following:

Homemade strawberry compote (made with locally picked strawberries when possible from Claggan fruit farm) *most popular choice* 

Homemade lemon curd 

Homemade summer berry compote


Rich chocolate sponge paired with chocolate or vanilla buttercream and a choice of the following fillings:

Salted caramel

Mint aero