Prepare the Apple Filling:

1. Caramelize the Apples: In a skillet, melt the butter over medium heat. Add the diced apples and brown sugar, cooking for 5-7 minutes until the apples are soft and caramelized. Remove from heat and let cool slightly.

Make the Batter:

2. Mix Dry Ingredients: In a large bowl, whisk together the flour, sugar, baking powder, cinnamon, nutmeg, and salt.
3. Combine Wet Ingredients: In a separate bowl, whisk the eggs, milk, and bourbon until smooth.
4. Form the Batter: Gradually add the wet ingredients to the dry ingredients, stirring until just combined. Fold in the caramelized apples.

Fry the Fritters:

5. Heat the Oil: In a deep skillet or Dutch oven, heat about 2 inches of oil to 350°F (175°C).
6. Shape the Fritters: Use a large spoon or ice cream scoop to drop portions of batter into the hot oil.
7. Fry to Golden Perfection: Fry the fritters in batches for 2-3 minutes per side or until golden brown and crispy. Remove with a slotted spoon and drain on paper towels.

Make the Bourbon Glaze:

8. Mix the Glaze: In a small bowl, whisk together the powdered sugar, bourbon, and milk until smooth and pourable. Adjust the consistency with more milk if needed.

Finish the Fritters:

9. Drizzle the Glaze: Once the fritters are slightly cooled, drizzle the bourbon glaze over the top.
10. Serve Warm: Enjoy the fritters fresh and warm for the best flavor and texture.