Yeah, the "Mobile Kitchen" doesn't live up to its name because you can't move it or take it with you.
Crafting as a whole feels unpolished. The game really needs a dedicated crafting interface, dragging and dropping is on the whole more inconvenient than it could be. Weapons, armour, clothing, potions, and scrolls are all possible ingredients for in-inventory crafting, which means you have to use the "All" Tab in your inventory for quite a bit of crafting, and even an inventory sort button isn't going to fix that.
Ingredients are almost entirely found at random, either in containers or in NPC inventories. You find one at a time, you can't buy a bunch at once.
Branches are a super-popular ingredient used in loads of things, but the game is super-stingy at handing them out.
Some recipes also are poor investments. One branch gives only one arrowshaft, when it should be at least three. One entire silver bar of ore gives one arrowhead, should be more than that. One Empty Flask plus One Barrel of Ooze gives you one poison potion! One flask should not take an entire barrel's worth of poison.
Sometimes things are inconsistent. You can't make a flask of water, not from a bucket, not from a barrel. You can't make a flask of oil from an oil barrel.
It's also odd that drinking a potion doesn't give you an empty flask.
