These sandwiches are quite simple to make, once you have baked the focaccia and chopped up some leftover cooked chicken. I suppose you could use some other kind of bread, but the results won't be quite as elegant.
Finely chopped cooked chicken
Salt, pepper, and curry powder to taste
A sprinkle of dehydrated minced onion
Optional: Finely chopped tart apple and/or nuts
Just enough mayonnaise to hold it all together
Mix the chicken salad ingredients and let sit, covered and refrigerated, for at least an hour. Add a good scoop of the chicken mixture to focaccia squares, which have been split horizontally, warmed, and spread with chutney.