My mom taught me how to prepare artichokes a long time ago. She would soak them in water with salt first to get any little critters hiding in them out. Pour out the water and boil new water with or without salt. Now a days you just need to rinse them unless they are organic.
There's a very sharp sticker on the point of the leaves, it's best to use scissors and cut the points off.They are sooo sharp.
I know people microwave them but I still boil them. There's a stem that is at the top of the artichoke. When cooked you can stick a fork easily in it. I pull off a leaf to to see if it is finished, too.
After draining the water out of the artichoke you can eat them hot or refrigerate and eat them cold.
They are great both ways.
Some people like to dip the meaty part of the leaf in butter. I love mayonaise. Then you pull the leaf between your teeth to scrape the meat off with your bottom teeth. Sounds gross but is so good. Yum!
The very center leaves aren't edible. Toss them! Now you are down to the heart. The best part. After cleaning out the fuzz in the center, with a spoon, you, definitely, don't want to eat the fuzz. Choke, Choke!! However, they weren't named for that reason.

You are left with a nice round concaved meaty center.
Can't buy this in a jar.