For the chicken: In a shallow pan large enough to hold chicken in a single layer, whisk together oil, vinegar, and mustard; add chicken, turning to coat. Cover and refrigerate for at least 2 hours.
Heat the grill to high; lightly oil the grates. Lift chicken from marinade and discard any remaining marinade. Grill until fully cooked and opaque throughout, 6 to 8 minutes per side.
For the dressing: In a blender combine mango, cilantro, mint, curry powder, and vinegar. Puree until smooth. With the motor running, add oil; season with salt and pepper.
To serve: Slice chicken crosswise. Arrange on a platter or four serving plates, along with avocado, watercress, and onion; serve the dressing on the side.
Loved the dressing.
Thank you for your recommendations!
Should read "Curry powder, preferably Madras curry if you can find it" under ingredient list for clarification! Our local grocery store carries Madras curry for $2/7 oz bag in the Ethnic foods department (Indian cuisine). The mango dressing is absolutely to die for! If you like a sweet, spicy dressing, this is the one for you. Mango in our area wasn't terribly sweet or ripe, so I added 2 tsp honey to the dressing and it came out perfect. Thank you for a delicious recipe!
Madras is a type of curry powder that is a bright yellow...the recipe lists it simply as "curry powder" - 1 tablespoon
Where are the ingredients/measurments for the madras?