Lost the birthday cake, what should I do?

I have an amoeba I keep as a pet. Today is his birthday; I didn’t forget. I baked him a cake so incredibly small, a microscope’s needed to see it at all. This minuscule morsel’s so meager and scant, it wouldn’t suffice as a snack for an ant. I topped it with candles of miniature size, to give my amoeba his birthday surprise. At last it was ready; the cake was all set, and just the right size for my single-celled pet. The candles were lit. It was perfectly frosted. I set the cake down, and I instantly lost it. And my amoeba already expects some kind of a treat, what should I do?