Si and Dave served up sweet and savoury pierogi dumplings in Scandinavia on Saturday Kitchen.

The ingredients for the sweet pierogi are: handful of large mint leaves, picked from their stems and 1 free-range egg white and 100g caster sugar.

For the dough: 250g plain flour, 15g icing sugar, pinch salt, 1 lemon, zest only, 1 free-range egg, 2 tbsp sour cream and knob of butter.

For the filling: 200g fresh blueberries and 2 tbsp caster sugar, plus a little extra for cooking.

To serve: 100ml sour cream or crème fraiche and 1 tbsp icing sugar, plus more for sprinkling.