3 roasted piquillo peppers, torn into ½-inch-wide strips
::: For serving: :::
2 tablespoons finely chopped flat-leaf parsley
Directions
Make the allioli: Using a large whisk, beat the egg yolk. Very gradually drizzle in the oil, drop by drop in a steady stream, whisking constantly, until the mixture is well emulsified and becomes thick. Whisk in the garlic paste and lemon juice. Season with salt and set aside. Note: The allioli can be made a day ahead. Cover and chill in refrigerator then bring to room temperature before serving.
Make the paella: Prepare a medium-hot charcoal grill. While the grill is heating, season the chicken with salt and allow it to come to room temperature. Brush the grill grates with ¼ cup of the olive oil. Place the chicken skin-side-down on the grill and close the lid. Grill the chicken until golden brown and almost cooked through, about 12 to 15 minutes. While the chicken is cooking, season the shrimp with salt and place on grill for about a minute on each side. Transfer the chicken and shrimp to a sheet tray and set aside.
Place a 15-inch paella pan on the grill. Once the pan is hot, add the chorizo and cook, stirring occasionally, until the chorizo starts to brown and the fat has rendered, about 10 minutes. Remove the chorizo using tongs or a slotted spoon and transfer to a bowl.
Add the onions to the pan and cook, stirring often until soft, about 8 minutes. Add the garlic and cook for 2 minutes. If the pan seems dry, add the remaining olive oil. Add the tomatoes and hydrated ñora chile, along with its soaking liquid, and cook until the liquid has reduced and the vegetables have completely softened and melded together, about 12 minutes. Add chorizo back to the pan with the paprika and saffron and cook until fragrant, about a minute.
Add the rice and season with salt. Cook for 1 minute with the sofrito and chorizo. Add the stock, stir to combine and bring to a rapid boil, adding more charcoal to the fire as needed to maintain the temperature.
Bury the chicken thighs skin-side-up in the rice and cook, making sure not to stir from this point on, until the rice is tender but still al dente and the chicken is cooked through, about 20 to 25 minutes. Nestle the mussels, clams and shrimp in the rice. Cover and cook until the mussels and clams have opened up and the shrimp are cooked, about 5 minutes. Top with the roasted piquillo peppers and allow to sit for 5 minutes before serving.
To serve, sprinkle parsley over the paella and serve with lemon wedges and allioli.