Pulse garlic, next 6 ingredients, and 2 Tbsp. water in a food processor 3 or 4 times or until combined; process 1 to 2 minutes or until smooth, stopping to scrape down sides. Add salt to taste. Cover and chill at least 2 hours or up to 3 days. Let stand at room temperature 30 minutes before serving. Drizzle with additional olive oil, if desired. Serve with pita chips, sliced cucumbers, and olives.