Pumpkin Pie Blondies

Ingredients

• cooking spray
• 1 (9 inch) prepared pie dough, thawed if frozen
• 1/4 cup butter at room temperature
• 1 cup brown sugar
• 2 eggs
• 1 (15 ounce) can pumpkin puree
• 1 1/4 cups all-purpose flour
• 1 tablespoon pumpkin pie spice
• 1/2 teaspoon baking soda
• 1/2 teaspoon salt
• 1 (11 ounce) package butterscotch chips
• 1/2 (2.25 ounce) package chopped pecans (optional)
• 2 tablespoons confectioners' sugar, or to taste (optional)