When I eat Bread Pudding Soufflé I always think of the Commander's saying, "If it ain't broke, fix it anyway." Bread pudding was already near perfection, but we combined Creole bread pudding with the light texture of a meringue and ended up with the restaurant's signature dessert, the single most sought-after dish in our family's restaurant history. The whiskey sauce itself is divine but particularly so when generously poured over the piping hot soufflé. Take it from me, this is no light dessert. Make the bread pudding and the sauce in advance, the meringue just before assembling and baking.
New Orleanians like their spiked foods spiked, which is why the whiskey sauce in this recipe uses what might seem like a generous amount of bourbon. Cut the amount of bourbon if you'd prefer. A standard crème anglaise would make a good alcohol-free alternative sauce.