Did you ever find it? I know your post is very old, but I found this recipe that might help. You could probably add some pineapple to the mix.
1/4 cup peach preserves
1/4 cup apricot preserves
2 tablespoons light corn syrup
5 teaspoons white vinegar
1/2 teaspoon soy sauce
1/2 teaspoon yellow mustard
1/4 teaspoon salt
1/8 teaspoon garlic powder
Dash red pepper
1 1/2 teaspoons cornstarch
2 tablespoons cool water
Combine all ingredients except cornstarch and water in a food processor or a blender and puree until the mixture is smooth.
Pour mixture into a small saucepan over medium heat.
Combine water and cornstarch in a small bowl and stir into saucepan. Bring mixture to a boil. Allow it to boil for five minutes, stirring often. When the sauce has thickened, remove it from the heat and let it cool. Store sauce in a covered container in the refrigerator. Makes about 3/4 cup
