I was anxious to try using the egg white/olive oil mixture with the phyllo instead of butter. Unfortunately the end result didn't turn out well. It had a rancid oil taste. My oil, egg and breadcrumbs were all fresh, newly opened so I dont' think it was that. My phyllo had been in the freezer, unopened in it's original package, for a while but it wasn't dry or brittle so I don't think it was that either. Ended up throwing it away which was sad because it was the last of my garden tomatoes. :( I think if you tried this using butter it would taste good but it is fairly time consuming to make so I probably won't try this again.