The most common thing that is baked would be bread but there are other foods that can be baked.
Id like to think so. For beginners the most common item to bake is bread. Then you can branch out and bake other various food items. I would start with that.
I really like to bake but seem to burn everything lately. Do you ejoy baking? No, are you baking stuff in an oven? Or perhaps using something else with prolonged dry heat like hot ashes or hot stones? Just the oven, probably the east of the three you said! I can't even make dough, I don't think I can even make the most commonly baked things.
The most common baked item is bread but many other types of foods are baked.