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1
First, prepare the cilantro-chili butter.
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2
Place all the ingredients in a bowl along with a generous seasoning of salt and pepper.
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3
Beat with a fork until well combined.
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4
Spoon the butter along the length of a large sheet of plastic wrap and roll up in the wrap to shape the butter into a log.
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5
Holding the sides of the wrap, roll the log on the work surface to even out the thickness.
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6
Refrigerate for a few hours until firm.
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7
Soak 12 bamboo skewers in cold water for about 20 minutes.
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8
This will help to prevent them from burning too quickly during grilling.
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9
Mix the oiive oil, chopped herbs, and lemon zest and juice together in a bowl.
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10
Thread two scallops and two shrimp alternately on each soaked skewer, then brush with the lemon and herb marinade.
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11
Place the skewers on a tray, cover with plastic wrap, and refrigerate for 20-30 minutes.
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12
Prepare the barbecue or heat a cast-iron grill pan until hot.
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13
Season the scallops and shrimp with salt and pepper.
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14
Grill over coals or on the hot pan until the scallops and shrimp are opaque and lightly charred, 1 1/2-2 minutes on each side.
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15
During cooking, baste occasionally with any leftover marinade.
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16
Remove to a serving plate and top with slices of the cilantro-chiii butter.
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17
Serve immediately.