Cilantro leaves, for serving
Potato buns, for serving
1 Jalapeno, halved, seeded and thinly sliced
1 Small red onion, halved, peeled and thinly sliced
1 tablespoon Neutral oil, like canola
1 1/2 teaspoons Kosher salt
1/2 teaspoon Red chile flakes
1 teaspoon Sichuan peppercorns, toasted and crushed (optional)
1 tablespoon Ground cumin
1 pound Ground lamb