Sadly, you can’t eat all the ice cream in a conventional bowl using compulsive spooning alone. But that doesn’t mean it’s impossible eat all of the ice cream, you just have to stretch the rules a little. A ceramic bowl would survive the heat intact, but the chemicals that make ice cream ice cream (as opposed to ash) wouldn’t. So if you define “eating all the ice cream in the bowl” as “there was ice cream, I ate ice cream, now it’s all gone”, a kiln is a good way to do it. The empty ice cream bowl picture is from here.