Generously spray a Bundt pan with nonstick cooking spray.

In a small bowl, combine brown sugar and 2 teaspoons of apple pie spice.

In another bowl, toss chopped apples with the remaining 1 teaspoon of apple pie spice, lemon juice, and flour.

Dip each piece of dough in melted butter, then roll it in the brown sugar mixture.

Arrange half of the coated dough pieces in the bottom of the prepared Bundt pan.

Sprinkle with half of the apple mixture and half of the nuts, if using.

Repeat with the remaining dough, apples, and nuts.

Spray a piece of plastic wrap with nonstick cooking spray and loosely cover the Bundt pan. Allow the dough to rise for 2–3 hours, or until doubled in size.

Preheat oven to 350°F.

Remove plastic wrap and bake for 15 minutes. Loosely cover the top with aluminum foil and bake for an additional 20 minutes, or until the bread is fully baked.

Remove from the oven and carefully loosen the edges with a knife. Invert onto a serving platter and serve warm.