Preheat the oven to 375°F. Line a muffin tin with muffin liners.
Peel the apples and cut into ½-inch pieces.
In a large bowl, combine flour, whole wheat flour, baking soda, apple pie spice, and salt. Whisk to combine. Add the apples and gently toss to coat. Set aside.
In a medium bowl whisk egg, milk, melted butter, lemon juice, vanilla, brown sugar, and white sugar.
Add the wet mixture to the flour mixture and mix with a spoon just until combined.
Divide over the muffin wells.
Bake for 18-22 minutes or until a toothpick comes out clean. Cool on a wire rack.
