Have you got any stuffing? (tha paxo type) if so make it up as normal spread it on the inside of the curve of the rack of fribs cover with foil and slow roast for an hour or 2. Uncover for the last 20mins so the top of the suffing crisps up.
I've been buying these recently from Morrisons and my dh loves them!! I roast them in the oven with a homemade BBQ sauce on them
for my sauce I use about 4tbsp ketchup, 4 of Soy sauce, a glass of orange juice, 2 tbsp honey Or brown sugar if I havent got any honey! teaspoon mustard, and 2 tbsp vinegar
I've also added other things like brown sauce and Worcester sauce...I tend to make it up as i go along! and quantity wise just add a bit more orange juice or other ingredients if needed and taste to get the balance right before you pour it on the meat! I then roast it slowly on a medium heat so that the sauce goes sticky. MMmm!