Chocolate lava cake

Fill a medium saucepan with two inches of water and set a heat-proof bowl on top.

Melt the butter and chocolate in the bowl, stirring until smooth; add the icing sugar.

Add two egg yolks and one whole egg to the chocolate mixture.

Add the flour and vanilla and mix it all in.

Grease two ramekins and fill them about three quarters of the way up.

Add a little salt.

Bake in a preheated 425F oven for 12 minutes; the molten centre comes from the oven temperature and the bake time.

Cut around the edges with a knife to free the cake from the sides and invert onto a plate.

First attempts did not release or collapsed; repeated twice before getting one with a molten centre.