You probably have all the ingredients on hand to make this quick spice rub. Water or chicken stock can be substituted for rum in the mango sauce.
Combine rum, mango, and habanero in the bowl of a food processor; process until smooth. Pour mango mixture into a small saucepan; bring to a boil. Stir in vinegar, butter, and 1/8 teaspoon salt; reduce heat, and simmer 6 minutes or until reduced to 1 cup.
Combine remaining 3/8 teaspoon salt, garlic powder, and next 5 ingredients (through allspice) in a small bowl. Rub oil evenly over chicken; sprinkle evenly with spice mixture.
Heat a grill pan over medium-high heat. Coat pan with cooking spray. Arrange chicken on pan; grill 5 minutes on each side or until done. Remove chicken from pan. Let stand 5 minutes. Cut across the grain into thin slices. Serve with mango sauce.
I used a jalapeño pepper because my hubby doesn't like food too spicy. He loved this.
Made this with chicken tenders and did not slide, I use extra mango which I grilled with the chicken. My family can't wait for me to make this again