Lemon Angel Pie

Directions

1. 1
   Beat egg whites with the salt and cream of tartar until stiff. Add 1 cup sugar, a little at a time, continuing to beat until mixture is glossy and sugar is completely dissolved.
2. 2
   Spread into a well buttered 9-inch pie plate, carrying it well out to the rim. Do not get over rim.
3. 3
   Edge should be visible.
4. 4
   Bake in a 275° oven for 25 minutes, then raise heat to 300° and bake 25 minutes more, until a faint brown tinge has appeared.
5. 5
   Remove from oven and let cool completely.