01 -
Preheat the oven to 175°C. Line a 23x33 cm baking pan with parchment paper, leaving an overhang on the sides for easy removal.
02 -
In a medium bowl, whisk together the flour, baking powder, baking soda, and salt until evenly distributed.
03 -
In a large bowl, beat the softened butter with granulated and brown sugars until the mixture is light and fluffy.
04 -
Add the eggs one at a time to the creamed butter mixture, beating well after each addition, then mix in the vanilla extract.
05 -
Gradually add the dry ingredients into the wet ingredients, mixing until just combined to avoid overworking the batter.
06 -
Gently fold in chocolate chips and chopped nuts if using, ensuring they are evenly distributed throughout the dough.
07 -
Spread the batter evenly in the prepared pan, then sprinkle the top with festive sprinkles for decoration.
08 -
Bake in the preheated oven for 25 minutes or until the edges are golden and a toothpick inserted in the center comes out clean or with few moist crumbs.
09 -
Allow the bars to cool completely in the pan on a wire rack before lifting out using the parchment overhang and cutting into 16 servings.