Ingredients
Method
- Preheat oven to 180°C / 160°C fan / Gas 4. Grease and line two 20cm sandwich tins.
- Place butter, sugar, eggs, flour, xanthan gum if using, baking powder, milk, and vanilla in a large bowl. Beat 2–3 minutes until smooth and pale.
- Divide equally between tins. Smooth tops. Bake 22–26 minutes — check at 22 minutes. Remove the moment the skewer comes out clean.
- Cool in tins 10 minutes. Turn out onto a wire rack. Cool completely.
- Beat butter 3–4 minutes until pale. Add icing sugar in two batches. Add vanilla and milk until smooth.
- Spread jam on one sponge. Add buttercream. Place second sponge on top. Dust with icing sugar.
Notes
Check whether your flour already contains xanthan gum before adding extra.
Remove from oven the moment the skewer is clean — do not overbake.
Weigh the batter between tins for even layers.
Bring all ingredients to room temperature before starting.
Stores in an airtight container for up to 3 days.
