Step‑by‑Step Instructions for Apple Snickerdoodle Bars

• Preheat your oven to 350°F (175°C) and line an 8x8-inch baking pan with parchment paper.
• In a mixing bowl, cream together unsalted butter, granulated sugar, and brown sugar until light and fluffy.
• Add in the egg and vanilla extract, beating until fully combined.
• In a separate bowl, whisk together flour, baking powder, salt, ground cinnamon, and ground nutmeg.
• Gradually add the dry mixture to the creamed mixture, stirring gently until just combined.
• Fold in the diced apple until evenly distributed.
• Transfer the batter to the prepared pan, spreading it evenly.
• Mix together sugar and cinnamon, then sprinkle evenly over the batter.
• Bake for 25-30 minutes, or until edges are golden brown and a toothpick inserted comes out clean.
• Allow the bars to cool completely in the pan before lifting out and cutting into squares.