It's no big deal really, but many people seem to be unable to master it so here goes. Beat milk and eggs fast until the mixture is frothy.
Standing allows the cinnamon sugar to get moistened a bit and tastes better.
I was brought up in Maine in a second generation immigrant family from outside Quebec. We do everything the same, but use slightly different ingredients. I hope you have a chance to give this a try, and good luck. Usually I start with 1 cup of water, and add small amounts until I get the right consistency. We usually would place fresh fruit in them and roll them up, and pour maple syrup over them, or use just the syrup, if we did not have any fruit.