I'd seen a number of posts around the internet for making your own food-dyed eggs, and in our mac and cheese video, we'd discovered a couple of natural ways to dye our cheese sauce orange. In the spirit of scientific discovery, I asked Sparky "so, maybe we should use things that stain - what kinds of foods stain your clothes?" Instantly, he responded: "Mustard! Juice! Beets!" and off we went. (I thought long and hard about making Kimchi-dyed eggs; I can't tell you how many shirts I've lost to red kimchi stains) Just last month, Sparky almost lost a shirt to ballpark mustard, but I'd decided it was better to join it than beat it, and dyed the whole thing yellow with turmeric powder (the natural coloring agent in yellow mustard.)
Chinese Tea Eggs, which are flavored as well as colored, something to try next year) Then, after rinsing the unbroken eggs with vinegar to etch the shells, we dumped both the cracked eggs and the whole eggs into the containers and left them in the refrigerator overnight.
The colors were really surprising - the yellow egg is, of course, turmeric - but the lovely orange was onion skin, and the blue is purple cabbage! Beets and raspberries made two shades of pinky-purple, and the annatto was a brownish-yellow. We had varying degrees of success with the marbled eggs - the beet and cabbage did the best, but turmeric did pretty well as long as the cracks were large enough. You could dye them two colors if you moved them from one bath to another, but an overnight soak for all the eggs and a post-soak scrubbing of the whole eggshells was crucial to the success of this venture. Happy Spring!