Hot giardiniera grilled cheese is crispy, golden, and loaded with sharp cheddar and spicy giardiniera. The secret is a simple aioli made from the giardiniera oil that brings heat and richness to every bite.

This recipe highlights one of my favorite condiments: giardiniera. If you’re new to it, giardiniera is a tangy, pickled vegetable mix that’s especially popular in the Midwest and brings a bright, spicy crunch to many dishes.

I often add giardiniera to pizza—frozen or homemade—for an instant flavor upgrade. It’s also fantastic on beer brats, hot dogs, and, of course, Italian beef sandwiches. If you’re interested in making your own, I’ve shared a homemade giardiniera recipe before.

The key to using giardiniera well is balancing its heat and acidity with something fatty—like cheese or a smear of aioli.

I often sprinkle giardiniera into grilled cheeses when we make soup and sandwiches for dinner. Recently I adapted an aioli idea I saw elsewhere—using the leftover oil from a jar of giardiniera—and made it my own.

To make the aioli, I blend about 1 cup of giardiniera oil with lemon juice, Dijon mustard, a pinch of salt, and one egg. The result is a spicy, flavorful mayo that crisps the bread beautifully when pan-fried. If you’re not a mayo fan, you can skip the egg: butter the bread and add a tablespoon of giardiniera oil to the skillet instead.

The sandwich filling is simple: sharp cheddar shredded and a little mozzarella for stretch, mixed with chopped giardiniera. For extra flavor, stir a heaping tablespoon of the giardiniera aioli into the cheese and chopped veggies so everything is coated and spreadable—think of it like a spicy pimento-style filling.

If you prefer no mayo or have an egg allergy, just layer the cheeses and chopped giardiniera in the bread and cook as usual. You can also brush the bread with butter and add a little giardiniera oil to the pan for a similar flavor boost.

Yes, it’s a bit more involved than a plain grilled cheese, but the payoff is worth it if you love tangy, spicy flavors. The aioli gives the crust a beautiful crisp and the filling melts into pockets of savory heat.

Hot Giardiniera Grilled Cheese

Yield:
2 sandwiches

Prep Time:
10 minutes

Cook Time:
7 minutes

Total Time:
17 minutes

Hot giardiniera grilled cheese with gooey cheddar, mozzarella, and bits of giardiniera, finished with a giardiniera aioli spread that crisps the crust and adds bright heat.

Ingredients

• For the aioli:
• 1 large egg
• 1 cup giardiniera oil (or a mix of hot giardiniera oil and avocado oil if you don’t have a full cup)
• Juice from 1/2 a lemon
• 1 tsp Dijon mustard
• Big pinch of salt
• For the sandwich:
• 4 slices brioche sandwich bread
• 1/2 cup hot giardiniera aioli
• 1 cup shredded sharp cheddar cheese
• 1/2 cup shredded mozzarella
• 1/2 cup chopped hot giardiniera

Instructions

1. To make the aioli, combine the egg, giardiniera oil, lemon juice, Dijon, and salt in a wide-mouthed jar. Use an immersion blender (or a regular blender) to blend until smooth and thick like mayo.
2. Spread equal amounts of aioli on each slice of bread. Heat a griddle or large skillet over medium-low heat.
3. Place the slices aioli-side down on the skillet. Top each slice with some shredded cheddar, a little mozzarella, and the chopped giardiniera. If you mixed extra aioli into the cheese beforehand, spoon that mixture onto the bread instead.
4. Cook until the cheese begins to melt, about 4–5 minutes. Flip one slice over the other, reduce heat to low, and cook 4 more minutes until the bread is golden and the cheese is fully melted. Lower the heat if the bread is browning too quickly.
5. Let the sandwiches rest for a couple of minutes on a plate or cutting board before slicing and serving.

Notes

For more giardiniera flavor, mix a heaping tablespoon of the aioli with both cheeses and the chopped giardiniera in a bowl, then spread that mixture on the bread before cooking.

Recommended Products

• 
  Lodge Cast Iron Skillet, Pre-Seasoned and Ready for Stove Top or Oven Use, 10.25″, Black