Place your pork butt into your slow cooker.
Use a knife or fork to poke holes throughout the pork butt meat.
Pour the ¼ cup of liquid smoke over the pork butt meat.
Sprinkle the Hawaiian red salt on each side of the pork butt. Make sure the meat is fat side up.
Cover the cooking vessel with its cooking lid. Cook it on low in the slow cooker for about 8 to 9 hours until the meat is tender and easily shreds with a fork.
Remove the cooked meat from the slow cooker (or leave it in the crockpot for easy clean up) and use a fork to lightly shred it into small chunks making sure to remove the fat pieces.
If you removed the cooked meat from the cooking vessel to shred, add about ¼ to ½ cup of the juices from the cooking vessel to the shredded pieces.
Then, add the other 2 and ½ tablespoons of liquid smoke to the shredded meat.
Now, lightly toss everything together just until the ingredients are incorporated.