How do I put this into the tuna, mayonnaise, onion, carrots separately and pickles prepared with mayonnaise. Then cut out one piece of bread or toast Farmhouses trimmed to a neat one-sheet is first coated with mayonnaise and tuna mixture. Then the second layer then lay the pastry covered with a green salad prepared with lettuce and then lay the bread 3. Moisten with mayonnaise, cover the top, then cut into four pieces could use a toothpick inserted alongside the bread stick together and packaged in plastic.