This simple probiotic sauce is a delicious accompaniment to grilled meats, vegetables, dolmas (stuffed grape leaves), pita, and crudité. Be sure to use unflavored full-fat Greek yogurt (not “Greek-style”) if possible. Avoid yogurt with corn starch (modified food starch) or gelatin, as the finished product will be compromised. Use only Japanese or English cucumber, because the peel is thinner and unwaxed, and seeds are small.