Line a baking sheet with parchment paper. Preheat your oven to 400°F (I usually wait to actually preheat my own until my scone dough is chilling. That way, the oven isn't on for as long).
In a large bowl, combine the flour, oats, brown sugar, baking powder, cinnamon, nutmeg, and salt.
Add the solid coconut oil to the dry ingredients. Use a pastry cutter or fork (Or your hands! I prefer to use my hand, actually) to cut the coconut oil into the dry mixture until it resembles coarse crumbs.
Pour the wet ingredients into the dry ingredients and mix until just combined.
Fold in the chopped apples and any optional add-ins like nuts or raisins.
Turn the dough out onto a clean surface (I use a cookie sheet lined with parchment paper) and pat it into a rectangle. Some people like to shape their scones into circles, and that’s fine too!
Chill your scone dough in the freezer for about 30 minutes.
Preheat your oven to 400°F if you didn't already.
Cut your chilled dough into triangular wedges.
Place your wedges on a cookie sheet lined with parchment paper, leaving room for some spreading. Bake for 15-20 minutes, or until the scones are lightly golden brown on the bottoms and around the edges and the top/middle region looks "set" and not jiggly. Allow scones to cool before adding glaze.
Whisk together all your glaze ingredients until smooth and drizzle glaze on top of cooled scones.
For some extra flavor: sprinkle a dash of cinnamon on top of wet glaze. Allow glaze to set 30-60 minutes.