For a spicier kick, increase the amount of chili flakes or add a dash of your favorite hot sauce. Store any leftover dip in an airtight container in the refrigerator. It will stay fresh for up to 3 days. Before serving again, mix it well, and consider adding an additional drizzle of olive oil for added flavor and moisture. Experiment with different olives or add sun-dried tomatoes or fresh herbs for variation.