How do I bypass the automatic shut off for my KitchenAid electric cooktop kecc568mbl00 so I can cook stocks longer?

SOURCE: What electric voltage plug do I use for KitchenAid 32" cooktop

I would use the 220volt 60amp available at any hardware store. Just make sure you check the wall outlet you are going to use. The Dryer and Range are not the same.

SOURCE: ELEMENT WONT SHUT OFF

Sounds like that specific element has shorted to ground inside it's sheath. You'll probably find the element does not get as hot as it normally would.
A fuse will not blow, or breaker not throw, because of the point in the element that the element has grounded.

Elements are available from a number of resources.

A way to test if the element is shorted to ground:

Tools needed -

Ohmeter

1)Disconnect power from the appliance
2) Remove the element (Sometimes they are plugged in, sometimes the wires screw onto the ends of the element.
3) Set the Ohmeter to Rx1000 or more.
4) Measure the resistance between the outside metal sheath, and either of the two power connection points on either end of the element. Under any condition, you should not get a reading. If you do, the element is bad, and you need to get a new one. They are not repairable.
5) Re-install in the reverse removed.
6) Check all connections are clean and all is re-assembled as you originally found it.
7) Turn on power and check if element comes on.

It is unlikely the problem is with the control, but it is a possibility. Give me more info about the cook-top (make, model) so I can investigate further.

SOURCE: electric ignitors will not shut off gas cooktop range

Hi,
Here is a tip that I wrote that will help you with that...

http://www.fixya.com/support/r4033033-gas_range_repair_burners_keep_clicking

heatman101