i like to challenge food historians to agree if cake bible’s chocolate oblivion truffle torte is the very first and original flourless chocolate cake, nowadays the ubiquitous and popular dessert offered in all fancy restaurants, often imitated and often not completely flourless! cake bible was published in 1988. the cupcake version arrived on 2009, with ROSE’S heavenly CAKES: Baby Chocolate Oblivions (page 371).
these exceptionally chocolatey and truly flourless cakes are indeed a type of custard. the oblivions are baked for only a very short time (about 10 minutes), in a very hot oven (around 425 oF), and with a hot water bath (as most custards). the main oven of my apartment kitchen is narrow, but it has incredible even heat. to fit a water bath big enough for 12 cupcakes, i build my bath! use 2 open-sided baking sheets, stacked: one inside the water bath, the second holding the outside bottom. line several layers of full width heavy duty aluminum between the 2 baking sheets, with a 2″ overhang that folds to make the pan sides. secure the corners with 3M Scotch Tape (which is safe up to 475oF). fold the top 1/4″ on itself, all around, to make the sides stronger.