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Italian Mozzarella Stuffed Pepperoncini


  • Author: Sophie
  • Total Time: 2 hours 20 minutes

Ingredients

Scale

For the Stuffed Pepperoncini

  • 2024 whole pepperoncini peppers, drained — choose peppers that are relatively uniform in size for even stuffing and marinating.
  • 8 oz fresh mozzarella pearls, finely chopped — fresh mozzarella brings a soft, creamy texture that’s far superior to shredded mozzarella in this filling.
  • 4 oz cream cheese, softened — this binds the filling together and adds richness.
  • ½ cup grated Parmesan cheese — for a salty, nutty depth of flavor.
  • 2 cloves garlic, minced — fresh garlic is essential for that bold Italian flavor.
  • 2 tbsp chopped fresh parsley — adds freshness and color.
  • 1 tbsp chopped fresh basil — brings a sweet, aromatic note.
  • 1 tbsp chopped fresh chives — a mild oniony bite that rounds out the herb blend.
  • 1 tsp Italian seasoning — a shortcut blend of classic Italian herbs.
  • ½ tsp garlic powder — layers in extra garlic flavor without overpowering the fresh garlic.
  • ¼ tsp freshly ground black pepper — for a subtle kick.

For the Italian Herb Marinade

  • ⅓ cup extra virgin olive oil — the base of the marinade; use a good-quality oil for the best flavor.
  • 2 tbsp red wine vinegar — adds tang and acidity.
  • 2 tbsp pepperoncini brine — don’t skip this! It ties the marinade back to the peppers themselves and boosts the tangy flavor.
  • 1 tbsp fresh lemon juice — brightens the entire marinade.
  • 2 cloves garlic, thinly sliced — infuses the marinade as it sits.
  • 1 tsp dried oregano — a classic Italian herb that pairs beautifully with pepperoncini.
  • ½ tsp dried basil — reinforces the herby flavor of the filling.
  • ½ tsp kosher salt — enhances all the other flavors.
  • ¼ tsp freshly ground black pepper
  • ¼ tsp crushed red pepper flakes (optional) — for those who like a little heat.

Optional Add-Ins ✨

Take this recipe up a notch with any of these mix-ins folded directly into the cheese filling:

  • Chopped sun-dried tomatoes
  • Chopped Kalamata olives
  • Finely diced salami
  • Pepperoni pieces
  • Toasted pine nuts
  • Lemon zest
  • Hot honey drizzle (for serving)

Instructions

Step 1: Prep the Peppers

Drain the pepperoncini peppers thoroughly and pat them dry with a paper towel. Removing excess moisture helps the marinade cling to the peppers and prevents a watery filling. Using a small paring knife, make a slit down one side of each pepper. If you prefer a milder bite, carefully scrape out the seeds and membranes, keeping the pepper mostly intact so it holds its shape once stuffed.

Step 2: Make the Cheese Filling

In a medium mixing bowl, combine the chopped fresh mozzarella, softened cream cheese, Parmesan cheese, minced garlic, parsley, basil, chives, Italian seasoning, garlic powder, and black pepper. Mix everything together until smooth, creamy, and evenly combined. If you’re using any optional add-ins like sun-dried tomatoes, olives, or diced salami, fold them in at this stage.

Step 3: Stuff the Peppers

Transfer the cheese filling into a piping bag fitted with a wide tip, or simply use a small spoon or butter knife to generously fill each pepperoncini through the slit. Work gently so the peppers don’t tear, and fill each one as full as possible for the best cheese-to-pepper ratio in every bite.

Step 4: Arrange and Prepare the Marinade

Arrange the stuffed peppers snugly in a shallow glass dish or airtight container. In a small bowl, whisk together the olive oil, red wine vinegar, pepperoncini brine, lemon juice, sliced garlic, oregano, dried basil, kosher salt, black pepper, and crushed red pepper flakes if using.

Step 5: Marinate

Pour the marinade evenly over the stuffed peppers, making sure they’re well coated. Cover the dish and refrigerate for at least 2–4 hours, though marinating overnight is highly recommended for the deepest, most developed flavor. Gently turn the peppers once or twice during marinating so every side gets evenly coated in that garlicky, herby oil.

Step 6: Serve and Enjoy

Serve the stuffed pepperoncini chilled or slightly cool, straight from the fridge. They’re delicious on their own, but truly shine alongside toasted baguette slices, crackers, antipasto platters, charcuterie boards, grilled meats, or a simple green salad.

  • Prep Time: 20 minutes
  • Cook Time: 2–4 hours (overnight recommended)

Nutrition

  • Serving Size: 10
  • Calories: 180 per serving