Food Coloring Paste/Gel

I was informed by "W"s pre-school teacher that gel/paste food color is the best to use for easter egg dyeing if you want those vibrant colors. We used these and they turned out beautifully and I really like that you don't get a smudge spot where the dye rubs off on the bottom when you sit it out to dry. The pinks wouldn't dissolve in the water/vinegar for some reason, hence our spotty egg.