Roast the peanuts
Cook the peanuts in an 8-inch skillet over low heat, stirring occasionally, until lightly browned in spots, 2 to 3 minutes. Coarsely chop the peanuts. Set aside.
Smoke the duck
Using a vegetable peeler, peel the zest from the orange in 1x2-inch strips, avoiding as much of the white pith as possible. Reserve the orange for another use. Put the orange zest, tea, rice, and sugar in the center of a sheet of heavy-duty aluminum foil. (If using thinner foil, use 2 or 3 layers.) Fold the foil loosely to form a flat packet.
Prepare a medium-high gas or charcoal grill fire. Clean and oil the grill grate; set aside. Set the tea-smoking packet directly on the hot coals or on top of a metal burner shield. Put the grate back on the grill and close the lid. On a charcoal grill, leave the vents partially open and wait for smoke to rise from the vents. On a gas grill, wait 10 minutes, then open the lid to check for smoke. If there is none, close the lid and check again in a few minutes.
Meanwhile, with a sharp knife, trim any silver-skin from the duck breasts and score the skin in a diamond pattern without cutting all the way through to the meat. Pat dry with paper towels and season generously all over with salt and pepper.
Arrange the breasts skin side up on the grill grate so they’re not directly over the packet, and then close the lid. Smoke the duck until the skin turns an uneven amber-brown color on the edges, 15 to 17 minutes (the skin side will still be uncooked). Remove from the grill.
Heat a 12-inch skillet over medium-low heat, add the smoked duck breasts skin side down and cook slowly, undisturbed, until some fat renders, the skin gets deep brown and crisp, and the breasts are cooked to medium-rare or medium doneness (an instant-read thermometer inserted into a breast should read 135°F to 140°F), 10 to 15 minutes. Transfer to a cutting board skin side up and let rest for 5 minutes. Slice thinly.
Make the salad
In a medium bowl, whisk the lime juice, fish sauce, garlic, shallot, chile, and sugar. Add the mangos and basil and gently toss to coat. Season to taste with lime juice, sugar, and salt (the riper the mango, the less sugar and the more lime juice you’ll need).
Divide and arrange the salad and then the duck on 4 plates; sprinkle with the peanuts.
nutrition information (per serving):
Photo: Romulo Yanes