do you need to cook chicken before putting in slow cooker
Report Abuse. Yes, the slow cooker will cook the chicken thoroughly. However, if you want the somewhat charred taste and texture, you have to sear the breasts in a skillet. In this instance, I wouldn't bother.oikos Â· 5 years ago. wouldn;t use breasts in the slow cooker. They will over cook and dry out. Boil the chicken quickly, then cool enogh to handle and shred. Pour BBQ over it and then heat when you are ready for dinner.