Grilled Sipi (Lamb Flaps)

Sipi is Tongan for sheep, but on a plate it means lamb flaps — the fatty belly ribs, shipped in from New Zealand and Australia for the better part of a century and thoroughly Tongan by now. They show up at feasts, at fundraisers, at every backyard with a fire in it. There's a real public health argument about the cut and it isn't wrong, but nothing else tastes like a properly rendered flap.

They're close to half fat by weight, which dictates the method: a long low render, then hard direct flame at the end. Skip the render and you get chewy and greasy. Glaze early and you get carbon. Kiawe is the right wood here because it takes that final high-heat pass without turning acrid the way mesquite does when it's pushed.

Ingredients

• 4-5 lbs lamb flaps (breast/belly ribs), cut into 4-5 inch strips
• 2 Tbsp coarse salt, 1 Tbsp coarse black pepper, 1 tsp granulated garlic
• Glaze: 1/2 cup shoyu + 1/2 cup brown sugar + 3 crushed garlic cloves + 1 thumb grated ginger + 2 Tbsp rice vinegar + juice of 1 lime, simmered 5 min to a loose syrup
• Lime wedges
• Chili pepper water on the table

Cook Sequence

1. Pull any loose silverskin and flapping membrane, but leave all the fat. The fat is the cut; trimming it is missing the point.
2. Salt, pepper, and garlic all over, 30 minutes on the counter while the pit comes up.
3. 275F indirect, three kiawe chunks, thin blue smoke. Flaps fat side up, spread out, not touching.
4. 2.5 to 3 hours. You're waiting on two signs: the fat turns from white to translucent, and the meat pulls back off the bone tips about half an inch.
5. Probe between the bones — 195-200F and no resistance. If the fat is still opaque white, it isn't ready no matter what the thermometer says.
6. Rake the coals hot, 500F plus. Flaps down direct, 60-90 seconds a side. It will flare; keep the tongs moving and keep a cool zone open.
7. Brush the shoyu-sugar glaze in the last 5 minutes, both sides, turning constantly. Sugar over live flame goes black in under a minute.
8. Rest 10 minutes, cut between the bones, and squeeze lime hard over the whole platter. Pepper water goes on the table, not on the meat.

Round Out the Plate

• Asian Slaw — sharp dressing is the only real defense against this much fat
• Cucumber Salad — cold, thin, vinegary — the palate reset
• Hawaiian Macaroni Salad — because it belongs next to anything off a fire