Cheese Puff Squares

Directions

1. 1
   Remove crusts from bread, cut into cubes approximately 1 1/4 to 1 1/2-inch square.
2. 2
   Mix egg whites, cheese and butter together. Beat very well (about 5 to 6 minutes) until very fluffy.
3. 3
   Spread 5 sides of cubes with mix (not too thick).
4. 4
   Put on cookie sheet. Bake 8 to 10 minutes at 400°.