Grease and flour (use cocoa) 9 inch springform. Mix all in order.
Bake 350F for 35-40 minutes, until a toothpick comes out of the center clean.
Cool 10 minutes. Remove from pan. Push handle of a wooden spoon into the cake to make holes all over the top.
Melt white chocolate along with butter and whipping cream. Beat smooth and cool slightly. Pour into holes in cake and cool. Cover with whipped cream, drizzle chocolate over top.