This tart is in the refrigerator chilling right now so this review may be a tad premature. I couldn't find dried egg whites, so I used pasteurized egg whites from Whole Foods and they seemed to work fine (they come in a carton). The only reason it calls for dried egg whites is because the whites aren't heated, so as long as you have pasteurized egg whites you should be fine. I tasted the filling before putting it in the refrigerator and it was amazing. I also tasted the crust before baking it and it also was fantastic. Can't wait to serve this tonight.