A ripe mango is slightly soft to the touch and it is yellowish with a nice red blush. With a sharp knife, peel mango and then slice the meat off into a food processor bowl (there will be a big, hairy pit in the middle). Process until pureed. Add hot sauce and sour cream and blend. Adjust flavor by adding more hot sauce if you like a nice kick. Spoon over grilled swordfish, etc. Store in refrigerator up to 5 days.