2 large mangoes, peeled, fruit cut off of the seed and roughly chopped
1/3 cup dark brown sugar
2 teaspoons Worcestershire sauce
4 teaspoons tamarind paste
1 teaspoon vegetable oil
1/2 teaspoon red pepper flakes
2 garlic cloves, coarsely chopped
2 pounds chicken wings, wing tips removed, or drumettes, rinsed and patted dry
Salt and freshly ground pepper
1 tablespoon canola or vegetable oil, for greasing baking sheet