Cook 1# of mac pasta in salted water 
FOR CHEESE SAUCE:
Add 1 quart of milk to pot and bring to a boil
Season with salt and white pepper  
Mix 3 tablespoons of flour and 1/2 cup melted butter and add to hot milk mixture and cook until thickened\


 Add
 1/2 cup cream cheese
     1/2 cup Velveeta cheese
     1/2 cup jack cheese 
      1 cup mild cheddar cheese 
Add to thickened milk mixture and incorporate completely 
Add cheese sauce to cooked mac pasta and pour in baking dish 
Top with sharp cheddar cheese and melt in oven