Buy RS3 Raw rat meat
Raw rat meat is a basic food item in RuneScape 3. It usually comes from killing giant rats. Level 2 giant rats in Lumbridge Swamp always drop it. Brine rats also always drop it, and they sometimes drop 18 noted raw rat meat at once.
You can cook raw rat meat on a range or a fire. It only needs level 1 Cooking, and it gives 30 Cooking experience when cooked into cooked meat. It is the cheapest way to make cooked meat, so it is a good pick for training Cooking at low levels.
Raw rat meat has other uses too. It is the tertiary ingredient for infusing albino rat pouches in Summoning. Hunters can use it as bait when trapping sabre-toothed kebbits. It is also needed for one of the Lumbridge and Draynor Tasks, where you cook it on a fire in Lumbridge Swamp.
Each piece weighs 0.141 kg. Whether you want easy Cooking experience, Summoning pouches, or kebbit bait, raw rat meat is a simple item with more than one job in RS3.