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Delicious Italian Sub Sandwich Recipe with Easy Homemade Giardiniera and Herb Oil

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A flavorful Italian sub sandwich featuring homemade spicy giardiniera and fresh herb oil, combining crunchy, tangy, and savory elements for a quick and satisfying meal.

Ingredients

  • Italian sub roll or hoagie bun, about 8 inches long
  • Assorted Italian deli meats: Genoa salami, capicola, and mortadella (about 3 oz / 85 g each)
  • Provolone cheese slices, 4-5 thin slices
  • Leafy greens or shredded iceberg lettuce
  • Thinly sliced ripe tomatoes
  • Thinly sliced red onion (optional)
  • Cauliflower florets, 1 cup (small pieces)
  • Carrots, peeled and sliced into thin rounds, 1/2 cup
  • Celery stalk, thinly sliced, 1/2 cup
  • Jalapeño or pepperoncini peppers, chopped, 1-2
  • Garlic cloves, minced, 2
  • Fresh oregano, chopped, 1 tsp (or 1/2 tsp dried)
  • Red pepper flakes, 1/4 tsp (optional)
  • White vinegar, 1/2 cup
  • Olive oil, 1/4 cup
  • Extra virgin olive oil, 1/3 cup (for herb oil)
  • Fresh basil leaves, 10-12
  • Fresh parsley, 5-6 sprigs
  • Garlic clove, minced, 1 (for herb oil)
  • Fresh lemon juice, 1 tbsp
  • Salt and black pepper, to taste

Instructions

  1. Prepare the Giardiniera: In a large bowl, combine cauliflower, carrots, celery, jalapeño, garlic, and oregano. Season with salt and pepper. Pour the white vinegar and olive oil over the veggies, then stir well. Cover and refrigerate for at least 4 hours or overnight.
  2. Make the Herb Oil: Blend fresh basil, parsley, minced garlic, olive oil, lemon juice, salt, and pepper until smooth but vibrant green. Add water if too thick. Adjust seasoning and set aside.
  3. Prep the Sandwich Ingredients: Slice the Italian sub roll horizontally without cutting all the way through. Layer the meats evenly, followed by provolone slices, shredded lettuce, tomato slices, and red onion if using.
  4. Assemble the Sandwich: Spoon homemade giardiniera generously over the layered ingredients. Drizzle herb oil evenly inside the sandwich.
  5. Optional Toasting: Wrap the sandwich in foil and heat in a preheated oven at 350°F (175°C) for 8-10 minutes to melt cheese and soak in herb oil.
  6. Serve: Cut the sub into halves or thirds and enjoy immediately.

Notes

Make giardiniera ahead for better flavor. Toast bread lightly before assembling to avoid sogginess. Adjust spice level by varying jalapeños and red pepper flakes. Store giardiniera and herb oil separately if not assembling immediately.

Nutrition

Keywords: Italian sub sandwich, giardiniera, herb oil, homemade sandwich, deli meats, easy sandwich recipe, spicy pickles, comfort food

Find it online: https://emmaoven.com/delicious-italian-sub-sandwich-recipe-with-easy-homemade-giardiniera-and-herb-oil/