1 dash chile-garlic sauce (such as Sriracha®), or to taste
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cooking spray
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salt and ground black pepper to taste
Instructions
Make the chicken: Whisk oil, herbes de Provence, garlic, salt, and pepper together in a bowl. Add chicken and stir to coat. Cover and refrigerate, turning occasionally, for 1 to 6 hours.
About 30 minutes prior to cooking, make the glaze: Whisk broth, orange juice, sugar, orange zest, melted butter, tamarind paste, and ginger together in a saucepan over medium-high heat. Cook at a vigorous boil, whisking often, until mixture has reduced to about 3/4 cup and glaze coats the back of a spoon, 25 to 30 minutes. Remove from the heat and stir in chile-garlic sauce, salt, and pepper. Reserve 3 tablespoons glaze in a small bowl for basting.
Preheat an outdoor grill for medium-high heat. Spray a grill pan with cooking spray.
Remove chicken from marinade and shake off excess. Discard remaining marinade.
Grill chicken on the preheated grill, basting occasionally with reserved tamarind juice, until no longer pink inside and the juices run clear, about 4 minutes per side. An instant-read meat thermometer inserted into the thickest part of a breast should read at least 165 degrees F (74 degrees C).
Transfer chicken to a serving plate and pour remaining tamarind glaze over top.