While preheating your STOK grill, collect all your ingredients.
In a separate bowl add the brown sugar
Add the cinnamon
Add the chopped walnuts and dried cranberries
Mix all these ingredients thoroughly
Take your apples that have been emptied out of the middle like a bowl and put 1/4 of the mixture in each apple
Place the apples in your STOK Cast Iron Skillet Insert
Pour 1/4 of the butter over each apple
Add 1/2 cup of water to the pan, cover and bake 50 - 60 minutes.