Boston bun

Instructions

1. Mix the flour, yeast, sugar and salt in a bowl. Add the egg, warm milk, vanilla and softened butter, then knead for 8 to 10 minutes until soft and smooth.
2. Cover and leave to rise for 1 hour somewhere warm, until doubled in size.
3. Knock back the dough, divide it into 6 equal balls and place them in a buttered round tin, packed closely together.
4. Let them rise for another 30 minutes, then bake at 180 °C for 15 to 18 minutes, until golden.
5. While they bake, make the icing by mixing the icing sugar, warm water and lemon juice until it is thick but pourable.
6. Leave the buns to cool on a wire rack. Once lukewarm, spread the white icing over the tops and let it set for a few minutes.
7. When ready to serve, split each bun on the side and fill it with custard or whipped cream.