Mazurek (Polish Easter cake)

Instructions

1. Preheat the oven to 180 °C (gas mark 6). Mix the flour, baking powder, sugar and salt in a bowl.
2. Add the cold diced butter and rub in until you get a coarse sand-like texture, then add the yolks and the whole egg and knead just until combined.
3. Divide the dough in two, roll out the first half and press it into a buttered square tin, then prick it with a fork.
4. Spread the apricot jam over the base, then sprinkle with nuts, raisins and candied fruit.
5. Roll out the second piece of dough into a square, cut it into strips and lay them in a criss-cross pattern over the filling.
6. Bake for 35 minutes, until the cake is nicely golden. Let it cool completely in the tin.
7. Mix the icing sugar with the lemon juice to make a smooth icing, spread it over the cake and decorate with coconut or candied fruit.