I took my time when creating these dye samples. I gathered plenty of yellow onion skins to fill my dye pot completely. I added water to my pot, boiled the skins for 30 minutes, and allowed the skins to soak in the bath for a few days. I strained the skins from the bath and added my (pre wet) fabric. I brought the dye bath back to a boil for 30 mins with my fabric, keeping an eye on the surface making sure to release any air bubbles from the fabric. I allowed the fabric to soak in the bath overnight. This amount of time isn't necessary to achieve color results, but it is how and why my colors are so saturated.