Years ago before I got salmonella from cookie dough (it IS possible, they had about 30 cases from one batch of contaminated eggs) I used to break eggs into a glass (poke the yokes) and swallow like Rocky... these days any eggs consumed in this house must be fully cooked, and no more licking beaters or bowl. (yeah that isn't great, but).
Putting spices into your eggs to leach into the eggs is a really great thing to do, and yes, it gives a new dimension to your spice sugar cookies. I learned for cookies and making cakes from scratch, to have eggs at room temperature for best results. It adds to pies too.
Cinnamon also can help regulate blood sugar but you have to do 6 grams a day-1 1/4 teaspoons (I use really mild Ceylon cinnamon for this as it's got less cucurmin) and add it to my foods. I eat a lot of soy and make my own soymilk and nutmeg will help kill the beany taste in the soy. I can't give amounts as I just shake some in there after the cinnamon. It works best if the
milk is left to chill in fridge for 4-6 hours first.