Hell, i'm trying to find out how exactly you make "fruity pop", basically ice cream with fruit.
Go south of the main town in the desert to the woods and forage for food until you get "ice fruit" I think it was called, then go back to town and buy some milk, combine the two with the "knife and chopping board" icon and you're good to go. Now I wanna know how I can fug the blue haired chick, maybe I'm not far enough.
On an unrelated note I've just found out some easy early money, when you get to the desert go to the bottom left corner where the mountains are and forage for "armor parts", sell everything you find to the town that you can warp to that is located slightly to the right. Garnets go for 500, iron scraps for 50. You unlock warping after doing the first dungeon by giving the guy with the shitty looking abs a tomato + lettuce salad. You get the tomatos from foraging at the end of the first dungeon.
If you have trouble with the first boss remember this rule: If you ever attack using a weakness (or you kill an enemy) your main character gets a free turn. The first boss is weak to fire so just keep taunting/healing with the hero while burning with the witch. I think you unlock taunting at level 4? The dungeon gives really good exp, it's the best place to farm on the first island but you shouldn't need to do so beyond getting taunt. The witch is far too squishy at this point, be sure to give her at least one defense item.
Another tip, if you go into your items menu you'll find a "picture book" icon, within it is a record of all the items you have come across and it also lists the required items for crafting if you've ever picked up the ingredients. It's annoying having to constantly mouse over all the question marks until you find what you're looking for but it beats experimenting only to make inedible food.