My TIP when plank cooking turkey is to use a marinade to keep everything as moist as possible. The idea behind plank cooking is that the food keeps moist because the plank has been soaked but I find that when cooking something as big as a turkey that the plank dries out so by doubling up with a marinade there’s not excuse for a dry offering!
You can see from the picture above that this recipe calls for a turkey crown ie. the complete breast and in addition there's a couple of things that you've got to look out for when plank cooking turkey like this:-
It’s an overnight marinade
It’ll take longer than 15 mins to cook
Temperature requirements are more like a traditional oven
Make sure you’ve go a big enough cooking plank!
With salt in the marinade it technically is a brine but it is so weak that there's not worries about the turkey becoming too salty by marinading overnight. To learn more check out this page "what is brine and how does it work?"
1 tablespoon each of soy sauce, brown sugar, olive oil, black pepper
1 inch cube fresh chopped ginger
2 teaspoons Worcestershire sauce
2 teaspoons salt
In a suitable marinade bowl or bucket, mix up all the other ingredients (except the turkey) taking care to ensure that all the salt and sugar has dissolved. Place the brine / marinade in the refrigerator for a couple of hours.
When the brine is chilled, place the turkey in it, cover with stretch wrap and leave it in the refrigerator overnight. (Whilst salt is a preservative it won't prevent your meat from spoiling so you must refrigerate)
When ready to cook, remove the turkey from the marinade and pat dry. Place it on the pre-soaked, pre-heated cooking plank and cook for 75 minutes at 180°C or 350°F.
At the end of the 75 minutes give it a prod with a skewer and if the juices run clear then it ready to eat. (A BBQ thermometer should read 74°C or 165°F)
TIP 1 - Turkey should always be left for at least 30 minutes when removed from the oven because this allows the cooking process to finish and the juices to thicken so leaving the breast beautifully moist. Leave it for an hour and it will be superb.
TIP 2 - Place a drip tray under the plank during the cooking process and you’ll be rewarded with some delicious juice to add in a sauce.