Yes. You use edible things in preparing or cooking food (which may happen in the kitchen). 'Use' maps to food prep (the act) but never to prep location. Only in cases where the thing has both general edible and food preparation usage -- "I use honey extensively in the kitchen" for example -- does "use" and "edible" make sense.
But peanut butter has general edible and food preparation usage quite similar to honey, doesn't it? You can spread it on a slice of bread to eat directly or use it as a baking ingredient, but you probably wouldn't eat it by the spoonful straight from the container. (Or maybe that's how people usually eat peanut butter, I kind of don't want to know.)