1. Bring water, sugar, vinegar, gin, salt, mustard seeds, celery salt, dried crushed red pepper, and crushed bay leaves to a boil in a Dutch oven over medium-high heat. Add Vidalia onions, peaches, and garlic; boil, stirring occasionally, 15 minutes. Let mixture cool completely (about 2 hours). Store in airtight containers in refrigerator up to 2 weeks.