How do you attach a cowl collar to knitted sweater?

To attach a cowl collar to a knitted sweater, first, ensure the collar is the correct length and width by checking the pattern or measuring against the neckline. With the right sides facing each other, align the collar edge with the neckline of the sweater, pinning it in place. Using a tapestry needle and a suitable yarn or thread, sew the collar to the sweater, making sure to keep the stitches even and secure. Finally, weave in any loose ends to finish the attachment neatly.