The main issue is applying the heat as evenly as possible. Fire is intense and focused on a small area. There are some things you can cook over an open flame, like pancakes, but they're going to be a lot more cooked on the outside than the inside. By the time you've made a chamber that dissipates the heat to a consistent temperature long enough to get all the way through an actual cake or something, you've just built an oven.
...Which you could do, I guess. But maybe it would be a better idea to experiment with flavors or decorations. Or combining things with gadgeteering, or something.
no subject
The main issue is applying the heat as evenly as possible. Fire is intense and focused on a small area. There are some things you can cook over an open flame, like pancakes, but they're going to be a lot more cooked on the outside than the inside. By the time you've made a chamber that dissipates the heat to a consistent temperature long enough to get all the way through an actual cake or something, you've just built an oven.
...Which you could do, I guess. But maybe it would be a better idea to experiment with flavors or decorations. Or combining things with gadgeteering, or something.