Inspired by the original from Central Grocery in New Orleans, this bold, briny olive salad is the key to a proper muffaletta. It’s also an easy way to add serious flavor to just about any sandwich.
Use your hands or a knife to crush or halve most of the green olives, leaving a few nearly whole for texture. Combine them in a medium bowl with the chopped Kalamata olives, giardiniera, and capers.
In a separate bowl or jar, whisk together the olive oil, reserved brines, oregano, thyme, garlic, and red pepper flakes. Pour the dressing over the olive mixture and stir until everything is evenly coated.
Spoon the mixture into a glass jar or other airtight container, packing it in gently. Refrigerate for at least 1 day before serving, stirring occasionally. For the most authentic flavor, allow it to marinate for 5 to 7 days. Give it a good stir before serving to redistribute the oil and seasonings.
Notes
Makes about 2 cups (15 two-tablespoon servings)
Keeps well in the refrigerator for up to 1 month for best quality, and up to 2–3 months if stored in an airtight jar with all ingredients fully submerged in oil.