These tangy, mildly spicy pickled peppers are a staple of Italian antipasto platters. This quick refrigerator version delivers crisp, flavorful pepperoncini in just a few hours.
Wash the peppers and pat dry. Using a sharp knife, make a small slit in each pepper to allow the brine to penetrate.
In a small saucepan, combine white wine vinegar, water, garlic, salt, sugar, oregano, and red pepper flakes. Bring to a boil, stirring to dissolve salt and sugar. Remove from heat and let cool slightly.
Pack the peppers into a clean glass jar or container. Pour the warm brine over the peppers, ensuring they are fully submerged. Let cool to room temperature.
Cover and refrigerate for at least 4 hours before serving. The peppers will keep for up to 2 weeks in the refrigerator.
Tips
For a milder version, remove the seeds and membranes from the peppers before pickling.
Serve as part of an antipasto platter with cured meats, cheeses, olives, and crusty bread.
The pickling liquid can be reused once for a new batch of peppers.