Pre heat oven to 150° C and butter, flour and sugar 2 x 20cm sandwich tins. Line the bottom of the tins with a disc of baking paper
Melt chocolate over gently simmering water, then remove from heat to cool slightly
In a stand mixer, beat the butter on medium speed for a few minutes
Add the caster sugar and beat until light and fluffy
Add cooled chocolate and beat until blended
Add egg yolks, one at a time and beat after each addition, until combined
Mix in the vanilla and milk
Fold through the sifted flour
In a separate bowl, beat the egg whites to stiff peaks.
Fold through a small amount of the whipped egg whites into the chocolate mixture, to loosen the mix, then continue folding through the rest of the egg whites
Divide the mixture into the 2 tins and bake for 35-40 minutes
Remove cakes from the tins and cool on a cooling rack
Once cooled, trim the surface of the cakes so the tops are flat
Heat the apricot jam in a small saucepan over medium heat, then push it through a sieve.
Spread the sieved jam liberally over the cake and sandwich together. Continue to spread the entire cake with the rest of the jam, then allow to cool and set
Once the glaze is made (see below), spread it quickly over the entire cake and allow to set
Serve with Chantilly Cream