Macaroni And Cheese

Directions

1. 1
   Cook macaroni until tender and drain thoroughly.
2. 2
   Stir in egg and butter.
3. 3
   Mix mustard and salt with 1 tablespoon hot water and then add to macaroni.
4. 4
   Add cheese, reserving small amount to sprinkle over top.
5. 5
   Mix and pour into buttered casserole dish. Add milk.
6. 6
   Sprinkle top with cheese.
7. 7
   Cover and bake at 350° for 45 minutes or until custard is set and top is crusty.