Ingredients I Used:
1 1/4 cups water
1 tsp unflavored gelatin
1 1/4 cup egg white powder
1 1/2 tsp cream of tartar
1/2 tsp Redmond real salt
1/4 cup RxSugar Allulose
1 stick salted butter, frozen and grated
1 egg yolk 
Sesame seeds for topping