Step 1

Prepare a grill for medium, indirect heat (for a gas grill, leave one or two burners off; for a charcoal grill, bank coals on one side of grill). Place a large cast-iron skillet on grill over direct heat (move it around to cooler part of grill as you cook if needed) and melt 4 Tbsp. butter in skillet. Add shallots and garlic and cook, stirring often, until soft, about 4 minutes. Add tomato paste and cook, stirring often, until paste darkens to a rich brick-red color, about 1 minute. Add beer and tomatoes. Bring to a boil and cook until beer is reduced nearly by half and no longer smells boozy, about 4 minutes. Stir in chickpeas and sambal oelek, then add clams. Cover (if you don’t have a lid that fits, use a sheet of foil) and cook, stirring occasionally, until clams have opened; this could take from 5–10 minutes depending on size of clams and the heat level. Remove from heat; discard any clams that don’t open. Stir in lime juice and remaining 2 Tbsp. butter.

Step 2

While the clams are cooking on the grill, drizzle bread with oil and season lightly with salt. Grill until golden brown and crisp, about 2 minutes per side.

Step 3

Transfer toast to plates and spoon clam mixture over; top with cilantro. Serve with lime wedges for squeezing over.