Roast Beef Panini with Sun-Dried Tomato Mayonnaise

I remember the first time I tasted a truly exceptional panini. It wasn’t in some fancy bistro, but at a small, family-run deli tucked away on a quiet street in Little Italy. The aroma of cured meats and crusty bread hung heavy in the air, and the owner, a jovial man with flour-dusted apron, insisted I try his roast beef panini. The warm, pressed bread, the savory beef, the tangy-sweet peppers – it was a symphony of flavors that sparked my love for these simple yet satisfying sandwiches. This recipe is my humble attempt to recreate that experience, with a little twist of sun-dried tomato magic.

Recipe Overview

• Prep Time: 15 minutes
• Cook Time: 5 minutes
• Total Time: 20 minutes
• Servings: 2
• Yield: 2 paninis
• Dietary Type: Not specified (can be modified)

Ingredients

• ¼ cup mayonnaise
• 2 teaspoons sun-dried tomatoes, minced
• 1 teaspoon garlic, minced
• 1 teaspoon prepared horseradish
• 1 teaspoon ketchup
• 1 pinch cayenne pepper
• ⅓ cup red onion, slivered
• ⅓ cup pickled sweet peppers (a mixture of hot and sweet), drained
• 1 pinch red pepper flakes
• 4 slices sourdough bread, ½ inch thick
• Butter, softened
• ½ cup white cheddar cheese, shredded
• 4 ounces deli roast beef, thinly sliced

Equipment Needed

• Small bowl
• Another small bowl
• George Foreman grill or skillet
• Heavy skillet or foil-wrapped brick (if using a skillet)

Instructions

1. In a small bowl, combine the mayonnaise, minced sun-dried tomatoes, minced garlic, prepared horseradish, ketchup, and cayenne pepper. Mix thoroughly until well combined. This sun-dried tomato mayonnaise is the star of the show, adding a creamy, tangy, and subtly spicy kick.

2. In another small bowl, toss together the slivered red onion, drained pickled sweet peppers, and red pepper flakes. Add a little juice from the pickled peppers. Let this mixture stand for at least 5 minutes, allowing the flavors to meld and intensify. The slight acidity from the pepper juice will help to soften the onions and create a more balanced flavor profile.

3. Spread softened butter on one side of each slice of sourdough bread. This will create a golden-brown, crispy crust when grilled or pan-fried.

4. On the unbuttered side of each slice of bread, spread a generous layer of the sun-dried tomato mayonnaise. Make sure to cover the entire surface for maximum flavor.

5. Sprinkle half of the shredded white cheddar cheese evenly over the mayonnaise on two slices of the bread.

6. Top the cheese with the thinly sliced deli roast beef, dividing it equally between the two slices.

7. Spoon the pickled pepper and red onion mixture over the roast beef, again dividing it evenly between the two slices.

8. Sprinkle the remaining shredded white cheddar cheese over the pepper mixture.

9. Top each assembled sandwich with the remaining slice of sourdough bread, butter-side up.

10. To cook the paninis, you have two options:

    • George Foreman Grill: Place the sandwiches on the preheated grill and close the lid. Cook for approximately 3-5 minutes, or until the bread is golden brown and the cheese is melted and gooey.
    • Skillet: Heat a skillet over medium heat. Place the sandwiches in the skillet and use another heavy skillet or a foil-wrapped brick to press down on top of them. This will help to create even browning and melt the cheese. Cook for approximately 3-4 minutes per side, or until golden brown and the cheese is melted.

11. Once the paninis are cooked to your liking, remove them from the grill or skillet and let them cool slightly before slicing in half and serving.

Expert Tips & Tricks

• For an even more intense sun-dried tomato flavor, use sun-dried tomatoes packed in oil. Just be sure to drain them well before mincing.
• If you don’t have pickled sweet peppers, you can substitute with roasted red peppers or even pepperoncini for a spicier kick.
• Feel free to experiment with different types of cheese. Provolone, mozzarella, or even a sharp cheddar would all be delicious in this panini.
• For a gourmet touch, try using a higher-quality roast beef, such as one that’s been slow-roasted in-house.
• To save time, you can prepare the sun-dried tomato mayonnaise and the pickled pepper mixture ahead of time and store them in the refrigerator for up to 2 days.
• If you don’t have a panini press or a heavy skillet, you can use a regular skillet and press down on the sandwiches with a spatula while they cook.
• Make sure the heat is medium to prevent the bread from burning before the cheese is melted.

Serving & Storage Suggestions

Serve the roast beef paninis immediately while they are warm and the cheese is melted and gooey. They are delicious on their own or with a side of potato chips, a simple green salad, or a bowl of tomato soup.

Leftover paninis can be stored in the refrigerator for up to 2 days. To reheat, you can either microwave them (although the bread will become soft), or reheat them in a skillet or panini press until warmed through.

It is not recommended to freeze the paninis, as the bread will become soggy upon thawing.

Nutritional Information

Nutrient	Amount per Serving	% Daily Value
Calories	703.9 kcal	N/A
Calories from Fat	226g	32%
Total Fat	25.2 g	38%
Saturated Fat	9.7 g	48%
Cholesterol	69.5 mg	23%
Sodium	1763.7 mg	73%
Total Carbohydrate	85.8 g	28%
Dietary Fiber	3.9 g	15%
Sugars	7.7 g	30%
Protein	34.3 g	68%

Note: Nutritional information is an estimate and may vary based on specific ingredients and preparation methods.

Variations & Substitutions

• Spicy Roast Beef Panini: Add a dash of hot sauce or a pinch of extra cayenne pepper to the sun-dried tomato mayonnaise for a spicier kick. You can also use hot pickled peppers instead of sweet ones.
• Italian Roast Beef Panini: Substitute the white cheddar cheese with provolone cheese and add a few slices of prosciutto or capicola to the sandwich.
• Vegetarian Panini: Replace the roast beef with grilled portobello mushrooms or roasted vegetables, such as zucchini, eggplant, and bell peppers.
• Gluten-Free Panini: Use gluten-free sourdough bread to make this recipe gluten-free.
• Different Bread: While sourdough is traditional, feel free to use other breads like ciabatta, focaccia, or even a hearty multigrain bread.

FAQs (Frequently Asked Questions)

Q: Can I use a different type of mayonnaise?
A: Absolutely! While regular mayonnaise works perfectly, you can also experiment with flavored mayonnaises like garlic aioli or chipotle mayo.

Q: What if I don’t have sun-dried tomatoes?
A: Sun-dried tomato pesto can be used as a substitute. Add it to the mayonnaise for a similar flavor.

Q: Can I make this panini ahead of time?
A: While the individual components can be prepped ahead, it’s best to assemble and cook the panini right before serving for optimal flavor and texture.

Q: What is the best way to weigh down the sandwich in the skillet?
A: A second, smaller skillet works great. Alternatively, wrap a brick in aluminum foil to keep it clean and use that as a weight.

Q: How do I know when the panini is cooked through?
A: The bread should be golden brown and crispy, and the cheese should be completely melted and gooey.

Final Thoughts

This Roast Beef Panini with Sun-Dried Tomato Mayonnaise is a delightful twist on a classic comfort food. The combination of savory roast beef, tangy sun-dried tomatoes, and melted cheddar cheese is simply irresistible. I encourage you to give this recipe a try and experiment with different variations to create your own signature panini. Share your creations with friends and family and let me know what you think! Pair it with a crisp salad and your favorite beverage for a complete and satisfying meal.