Can I make this sandwich ahead of time?
Yes, assemble up to 4 hours ahead; wrap tightly and refrigerate. Add the arugula salad just before serving to keep the bread from getting soggy.
What cured meats work best for this sandwich?
Prosciutto, salami, and capicola are traditional choices. Use 2–3 types, sliced thin, for maximum flavor without overwhelming the bread.
Can I substitute the bruschetta aioli?
Yes: pesto mayo, roasted red pepper spread, or plain garlic aioli work well. Keep the ratio at roughly 1 part flavoring to 4 parts mayo.
How do I keep the focaccia from getting soggy?
Spread aioli on both sides of the bread to create a moisture barrier, and assemble no more than a few hours ahead. Add wet ingredients like tomatoes and greens last.
Can this be made vegetarian?
Omit the cured meats and add roasted vegetables such as zucchini, eggplant, or marinated artichoke hearts for substance and flavor.