Components
125g unsalted butter, softened
½ cup caster sugar
1 tsp vanilla extract
1 free-range egg
1¼ cups gluten-free plain flour, plus a little bit further for dusting
2 Tbsp white rice flour
1 tsp xanthan gum
LEMON BUTTERCREAM
80g unsalted butter
⅔ cup icing sugar combination, plus further, to mud
Finely grated zest 1 lemon
