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Beef Sliders with Provolone and Balsamic Onions

These beef sliders with provolone and balsamic onions offer a sophisticated twist on a classic high-protein favourite. By using quality minced beef and sharp provolone piccante, you create a depth of flavour that far surpasses a standard burger. The secret lies in the quick-pickled balsamic onions, which provide a bright, acidic crunch to cut through the richness of the melted cheese and savoury meat.

Perfect for casual entertaining or a weekend treat, these mini burgers are designed to be shared. They fit seamlessly into a high-protein diet while remaining a crowd-pleasing option for guests. For the best results, serve them in soft potato buns with a generous dollop of creamy aioli to bring all the Mediterranean-inspired elements together.

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Ingredients for Beef Sliders with Provolone and Balsamic Onions

  • 900g beef mince (20% fat)

  • Kosher salt, freshly ground pepper

  • 4 slices provolone piccante cheese, torn in half

  • 8 potato slider buns

  • 1 large red onion, very thinly sliced into rounds

  • 3 tablespoons balsamic vinegar

  • 1 teaspoon sugar

  • Aioli or store-bought mayonnaise (for serving)

Divide meat into 8 portions (about 110g each). Place 1 portion on a work surface. Cup your hands around the meat and shape it into a rounded mound. Gently flatten patty to about 3/4" thick. Season both sides with salt and pepper. Repeat with remaining portions of meat.

Prepare a grill for medium-high heat. Grill patties until lightly charred on bottom, about 3 minutes. Flip and top with a piece of cheese. Grill to desired doneness (cheese should be melted), about 3 minutes for medium-rare. Transfer patties to a cutting board and let rest 5 minutes.

While patties are resting, grill the buns, cut side down, until lightly charred around the edges, about 30 seconds.

Toss onion with vinegar, sugar, and a pinch of salt in a medium bowl and let sit, squeezing onions occasionally to soften slightly, 5 minutes.

Build sliders with patties, buns, onions, and aioli.

Patties can be formed 6 hours ahead. Cover and chill.

Disclaimer

While every effort has been made to ensure the information is accurate and up to date, individual needs may vary and dietary requirements can differ based on personal health conditions. Always check food labels and allergen information before preparing or consuming any recipe. If you have specific health concerns, allergies, intolerances, or are following a medically prescribed diet, seek advice from your GP, pharmacist, or a registered dietitian before making significant changes to your diet or lifestyle.

Article history

The information on this page is peer reviewed by qualified clinicians.

  • 28 Jan 2026 | Originally published

    Authored by:

    UK recipe editors

    Peer reviewed by

    UK recipe editors
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