2 cups all-purpose flour
1/3 cup granulated sugar
2 teaspoons baking powder
1/2 teaspoon salt
1 teaspoon ground cinnamon
1/4 teaspoon ground nutmeg (optional)
3/4 cup milk
1 large egg
1 teaspoon vanilla extract
2 tablespoons unsalted butter, melted
1 1/2 cups diced apples (such as Granny Smith or Honeycrisp)
For the Glaze:
1 cup powdered sugar
2-3 tablespoons milk
1/2 teaspoon vanilla extract