Prepare the Miso Butter: In a small bowl, beat together the butter, miso paste, soy sauce, and sesame oil until smooth. Set aside.
Prepare the Grill: Light the barbecue and allow the coals to turn ashen. Push more coals to one side to create two heat zones: a hot side for direct grilling and a cooler side for keeping cooked items warm.
Grill the Vegetables: Brush the mushrooms and onion slices generously with the miso butter. Position the Vegetables on the hot side of the grill. Cook for about 10 minutes, turning and basting occasionally with more miso butter. Use a spatula to carefully flip the onions to avoid them separating into rings. Once the vegetables are charred and softened, move them to the cooler side of the grill to keep warm. Continue basting occasionally.
Grill the Halloumi: Place the halloumi slices directly on the hot side of the grill. Cook until browned and lightly charred, about 2-3 minutes per side.
Toast the Buns: Brush the cut sides of the burger buns with the remaining miso butter. Toast them on the hot side of the grill until golden and slightly crisp.
Assemble the Burgers: Spread a layer of burger sauce or your favorite condiment on the bottom half of each bun. Layer with grilled mushrooms, onions, halloumi, tomato slices, and rocket. Add the other half of the bun on top.
Serve: Serve immediately while warm with additional sides like grilled corn, coleslaw, or fries if desired.
Enjoy this umami-packed burger 🍔 that’s bursting with smoky, savory, and creamy flavors! Let me know if you’d like pairing suggestions or additional customizations