Other condiments may include butter, tomato sauce and peanut butter.
Originally developed to get more filling/bang from a pie.
If using a single serve pie then you can get two piewiches, or if a family sized pie has been chosen, you can feed up to four people using eight or more pieces of bread.
Healthier variants include margarine instead of butter and brown/multigrain bread.
Well then Lachlan, get yourself a piewich and you'll be full in no time. Try emptying one of those Burger King sauce sachets into it as well!
Sweetbix Falvey, my hunger will be satisfied. MMMmmm...