Black Walnut Bars

Directions

1. 1
   Heat one quart of rich, sweet milk in double boiler.
2. 2
   When hot, add the well beaten egg yolks of three eggs diluted with 1/2 cupful of cold milk.
3. 3
   Beat the whites to a stiff froth, adding a pinch of salt.
4. 4
   When well beaten, add 1 cupful granulated sugar and beat until perfectly smooth, then add slowly to the heated milk and cook until it thickens.
5. 5
   Do not add flavoring until cold.
6. 6
   (By beating the sugar into the whites, the custard is made creamy all through.)