Yum. I used potato cooking water instead of mineral water and sour cream mixed with milk instead of buttermilk. I baked mine in a pan which was a mistake since the egg glaze glued it in there--sort of an ugly loaf since I had to pry it out with a pancake turner. I'd recommend following the baking directions in the recipe and maybe baking on parchment paper just to be safe. Definitely making this again.