I must be in the minority here. The older I get the more my goals for meals change. If I'm going to take the trouble to cook something that appeals I want to come out the other side with.a LARGE one dish meal that can be eaten for days or frozen for later. I don't want to cook every meal, every day. Leftovers are my religion. Red beans and rice three days in a row? Fine with me. Baking? I want a big loaf or pie that I can hack away at or slice and toast for days to come. Baking one cookie at a time. What if it turns out to be a really good cookie? Don't you want another?
Is there a recipe for one deviled egg? The carbon footprint for this type of cooking isn't negligible. Heat your oven for twenty minutes. Bake one cookie. It just sounds nutty.