Wash and slice apples in half, along core. Scoop out the core with a melon baller or spoon.
In a small bowl, mix maple syrup, nuts, chopped dates, oats, cinnamon, nutmeg and nut milk until oats are moist and mixture is crumbly.
Spoon one heaping tablespoon into each apple core and place apples in a glass-baking dish.
Pour 1 cup of water around the apples. Cover in foil and bake for 20 minutes.
Remove foil and baste apples with juices from the pan. Continue to bake, uncovered, for an additional 10-15 minutes, or until apples are tender but not mushy.