Juicy flank steak is marinated in a punchy lemongrass and fish sauce blend, seared, and layered with crisp quick pickles, spicy Sriracha mayo, and loads of fresh herbs. Served in a crusty baguette with cucumber, lime, and a nuoc cham-inspired dipping sauce, this sandwich ticks every box.
First marinate the steaks. Combine the lemongrass, garlic, fish sauce, soy, sugar and oil. Rub over the steak and marinate for 1 hour
Next, prepare the pickles. Toss the julienned veg with vinegar, sugar and salt. Leave for 20 minutes
Mix together the ingredients for the sriracha mayo in one bowl and nuoc cham in another
Mix together the Thai basil, coriander and mint
Melt a generous amount of butter in a pan. Add the steak and sear the steak in the pan for 2 minutes per side, or until medium-rare (55°C), basting with butter as it cooks. Rest for 5 minutes, then slice thinly
Lightly toast the baguette and spread with sriracha mayo. Layer in the pickles, steak slices and some of the mixed herbs
Serve with cucumber, lime wedges, and serve the remaining mixed herbs on the side, plus a bowl of nuoc cham for dipping
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