I did it while the orthodox master (aka “the beast”) was at temple. Evidently on Pesach you can’t cook for the same night you’re eating, but yesterday I didn’t have time to make the desserts. So, we waited. We tiptoed around the cupboard to find the kosher for Passover (icky) ingredients. We washed each dish promptly after use.
The cookies turned out a bit grainy because of the matzoh meal, but the brownies are pretty damn good… from an LA Times recipe… ground almonds, melted dark chocolate, sugar, potato starch, eggs, you get my drift.
Thankfully the food police didn’t catch us… well, not just yet.