Barbecued Pork Sandwiches with Pickled Red Onion
Peer reviewed by UK recipe editorsAuthored by UK recipe editorsOriginally published 17 Jan 2026
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These smoky barbecued pork sandwiches offer a sophisticated twist on the classic summer cookout. By using lean pork tenderloin seasoned with fragrant Spanish pimentón and black pepper, you create a succulent, high-protein filling that feels far more refined than standard pulled pork. The dish is defined by its vibrant contrasts, pairing the warm, savoury meat with the crunch of quick-pickled red onions and a bright citrus vinaigrette that cuts beautifully through the smoky notes.
Ideal for casual weekend entertaining or a hearty family dinner, this recipe is designed for convenience with several components that can be prepared a day in advance. Serving the pork in toasted onion rolls adds another layer of savoury depth, making it a satisfying meal that fits perfectly into a balanced, active lifestyle. For a complete garden feast, serve alongside a crisp green salad or some grilled corn on the cob.
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Ingredients for Barbecued Pork Sandwiches with Pickled Red Onion
1 red onion, halved, thinly sliced
350ml boiling water
240ml plus 2 tablespoons orange juice
6 tablespoons distilled white vinegar
1/2 teaspoons (scant) salt
1 garlic clove, peeled
1/2 teaspoons smoked salt or coarse kosher salt
45ml purchased tomato-based barbecue sauce
2 tablespoons orange juice
2 tablespoons fresh lime juice
120ml olive oil
1 tablespoon coarsely ground black pepper
1 tablespoon smoked Spanish paprika (Pimentón de La Vera)*
1 teaspoon smoked salt or coarse kosher salt
2 (1-pound) pork tenderloins
Nonstick vegetable oil spray
6 large onion rolls, split, toasted
*Available at some supermarkets and specialty foods stores, and from tienda.com.
How to make Barbecued Pork Sandwiches with Pickled Red Onion
Place sliced onion in medium bowl. Pour boiling water over. Let stand 10 minutes; drain well, then return to bowl. Add juice, vinegar, and salt and stir to blend. Cover and chill at least 2 hours and up to 1 day.
Chop garlic with salt to paste; scrape into small bowl. Add barbecue sauce, orange juice, and lime juice to bowl. Gradually whisk in oil. Season vinaigrette to taste with pepper. DO AHEAD Can be made 1 day ahead. Cover and refrigerate.
Blend pepper, smoked paprika, and salt in small bowl. Sprinkle seasoning mix evenly over both tenderloins. Let stand at least 30 minutes and up to 2 hours.
Spray grill rack with nonstick spray. Prepare barbecue (high heat). Grill tenderloins uncovered 5 minutes, rolling over to sear all sides. Cover grill and continue to cook until thermometer inserted into thickest part registers 63°C, turning often and moving to cooler part of grill as needed, about 15 minutes longer. Transfer to cutting board; let rest 10 minutes.
Thinly slice tenderloins crosswise into rounds. Mound pork on roll bottoms. Top with well-drained onion slices, then drizzle with vinaigrette. Cover with roll tops and serve, passing extra onion slices and vinaigrette separately.
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.
17 Jan 2026 | Originally published
Authored by:
UK recipe editors
Peer reviewed by
UK recipe editors

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