White and Black Layer Cake Tower

12 slices of white or black bread, or a combination of both

Egg White:

4 hard-boiled egg yolks finely chopped

3 slices of crispy-fried bacon, finely crumbled

1 tablespoon of finely chopped onion

1 tablespoon of English-style mustard

To taste: salt

1/4 cup of mayonnaise

Hams:

1 cup of cooked ham, finely chopped

1/3 cup of green olives, pitted and finely chopped

1 tablespoon of mustard

1/4 cup of mayonnaise

Cheese:

1 cup of cream cheese

1 tablespoon of lemon juice

1 tablespoon of mustard

1 tablespoon of spicy ketchup