Oftentimes, a project will call for more than one ball of yarn, so you will need to add yarn throughout the project. If you are working on the Smoke & Slate Super Chunk Cowl Kit, you will have to add a ball of yarn halfway through.
Below are step-by-step photo and video instructions on how I recommend adding a new ball of yarn.
When you have about 6 inches left of yarn, it's time to add a new ball!
Insert your right needle up into the first stitch on your left needle as you normally would to knit. Create a loop with the new ball of yarn and place it around your right needle.
Finish knitting the stitch as you normally would.
Tie a knot with the remainder of your old ball of yarn with the short piece from your new ball. This should be on the wrong side (inside) of your project.