Chill Chocolate Cake

Preheat oven to 350 degrees. Take a 9”x13” baking pan and add about 3/4” of hot water. Place pan in preheating oven. Generously spray an 8" or 9" round cake pan with butter flavor cooking spray (bottom and sides), then dump in 1/2 cup granulated sugar and gently roll around the buttered pan, making sure the sugar coats both the bottom and the sides. Dump out the excess sugar. In a large bowl, add egg whites and salt and mix with a hand mixer on high speed until stiff peaks form, about 5 minutes. Set aside. Now, in a separate bowl, use the hand mixer to mix egg yolks and other 1/2 cup granulated sugar until fully mixed and foamy (mixture should become much lighter yellow in color and sugar should be fully dissolved). And, in yet another bowl, (this time it must be microwave-safe glass), add semisweet chocolate chips and place in microwave. Set microwave to 50% and turn on in 30-second bursts, stopping to carefully stir the melting chips in between (if you can’t reduce your microwave’s power to 50%, then stop every 15 seconds to stir). Be very careful not to overheat your chocolate chips or they will seize, meaning they will become dry and grainy and all you can do is throw them out. To completely melt the chips, it should only take two or three bursts in the microwave, max. Just make sure to stir well between bursts. Working fast while chocolate mixture remains liquid, add about a third of the whipped egg whites to the chocolate and carefully fold in, using a rubber spatula. Do not stir it, lest you deflate the bubbles in the foamy egg whites. Pour in the foamy yolk/salt mixture and fold. Now add more whites and fold, then add last bit of whites and fold. It’s OK if a few streaks of egg white remain (that's better than over mixing). Pour your foamy egg and chocolate mixture into your buttered and sugared cake pan and tap pan on countertop to level off and knock out any air pockets. Carefully place pan into the 9”x13” pan of hot water already in the pre-heated oven. Bake for 30 minutes until barely set (center may still look damp and should wiggle). Remove from oven and allow to cool on a wire rack for at least an hour. Sprinkle on some powdered sugar, and serve.