This grilled cheese sandwich is anything but ordinary. Layers of fresh mozzarella, truffle-flecked caramelized onions and a creamy truffle sour cream dip take this classic comfort food to new heights. Paired with crispy roasted potato wedges and a bright lemony mixed greens salad, it’s a meal that feels both indulgent and balanced.
Perfect for a cozy dinner or a weekend lunch, this recipe proves that simple ingredients can create something truly special. The earthy aroma of truffle combined with the sweetness of caramelized onions and the tang of sour cream makes every bite unforgettable.
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Values are calculated per serving from ingredient amounts and the ingredient nutrition reference per 100g. Allergen and diet labels use available ingredient metadata and name matching; always check product labels for strict diets or allergies. Some ingredient amounts or nutrition values were incomplete, so this is marked as a partial estimate.
Ingredients
Instructions
- Adjust an oven rack to the top position and preheat to 425°F. Wash and dry all produce. Cut potatoes into ½-inch-thick wedges. Halve, peel and thinly slice the onion. Halve the lemon. Thinly slice the mozzarella. In a small bowl, combine sour cream with ¼ teaspoon truffle zest (use ½ teaspoon for 4 servings); set aside.
- Toss potato wedges on a baking sheet with a drizzle of olive oil; season with salt and pepper. Roast on the top rack until browned and tender, 20-25 minutes.
- Meanwhile, heat a drizzle of olive oil in a large pan over medium-high heat. Add the sliced onion; cook, stirring occasionally, until browned and softened, 8-10 minutes. Add 2 tablespoons water and 1 teaspoon sugar (2 teaspoons for 4 servings); cook, stirring, until caramelized and jammy, 2-3 minutes. Season with salt and pepper. Transfer to a small bowl and stir in the remaining truffle zest. Wipe out the pan.
- Place bread slices on your work surface. Top half of the slices with an even layer of mozzarella and the caramelized onion mixture; top with the remaining bread slices. Melt 1 tablespoon butter in the same pan over medium heat. Add the sandwiches; cook until golden brown on the first side, 3-5 minutes. Flip, add another 1 tablespoon butter to the pan and cook until the bread is golden and the cheese is melted, 3-5 minutes more. (For 4 servings, cook in batches, adding 1 tablespoon butter per side per batch.)
- Meanwhile, toss mixed greens in a large bowl with a drizzle of olive oil and a squeeze of lemon juice to taste. Season with salt and pepper.
- Slice each grilled cheese sandwich in half diagonally. Divide among plates with potato wedges and salad on the side. Serve with the truffled sour cream for dipping.
Recipe Tips
For extra crispy wedges, soak the potato wedges in cold water for 30 minutes before roasting, then pat dry.
Use a good-quality sourdough bread for the best texture and flavor.
If you don’t have truffle zest, you can substitute a drizzle of truffle oil, but add it to the sour cream just before serving.
FAQ
Can I use a different type of cheese?
Yes, you can substitute fresh mozzarella with provolone, fontina or a mild gouda for a different flavor profile.
How do I store leftovers?
Store leftover grilled cheese and potato wedges separately in airtight containers in the refrigerator for up to 2 days. Reheat in a toaster oven or skillet to restore crispness.
Is this recipe vegetarian?
Yes, this recipe is vegetarian. It contains dairy but no meat.


























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