Preheat the oven to 180°C/350°F. Line the 18cm-7inch cake tin with baking paper. Shift the flour twice. Melt the butter and milk together.
Mix the eggs and sugar in a bowl over a double boiler, make them warm to 30-35°C. (85-95°F)
Whisk the egg and sugar with an electric mixer until it gets thick.
Add the flour and mix gently.
Add the melted butter and milk and mix them from the bottom to the top.
Pour into the prepared tin and bake it in the preheated oven at 180°C/350°F for 25-30 min.
For the syrup, mix water and sugar in a medium saucepan and bring it to the boil. Let it cool.
Whisk whipping cream and sugar until slightly thickened.
Slice the sponge cake into 2 equal layers. Slice the strawberries.
Place one sponge layer onto a plate and brush with the syrup.
Spread the whipped cream and arrange the sliced strawberries on it. Spread the cream again on the strawberries to cover them.
Place the other sponge layer onto the cake and brush with the syrup again.
Frost the sides and top of the cake with the whipped cream.
Decorate with the remaining whipped cream and strawberries.