The website in related links has a thorough discussion of the method.
Some popular recipes that feature sour green plums as a key ingredient include pickled green plums, green plum chutney, and green plum jam.
How many large plums are in 1 measuring cup? about 6.9
no
Plums, apricots, and peaches are all pitted fruits so you could consider them cousins. In fact plums and apricots have been crossbred to make plumicots.
You don't. Dried plums are called prunes. Dates are an entirely different fruit.
It is called 'onigiri' in Japanese. These riceballs are often wrapped in seaweed (nori) for easy (and mess free) handling, and can contain a variety of fillings; tuna, pickled plums, meat, etc.
You can make plums sweeter by allowing them to ripen fully on the tree before picking them, or by adding a sprinkle of sugar or honey before eating them.
To preserve plums effectively, you can either can them in a syrup or make them into jam. Canning involves boiling plums in a sugar syrup and sealing them in jars, while making jam involves cooking the plums with sugar until thickened. Both methods help preserve the plums for long-term storage.
soak cabbage in vinegar
Plums.
Sure just don't make them a staple in their diet.
I am going to make a guess: kelp?