Creating Golden Peach Crumble Bars can be a fun and satisfying process. Follow these simple steps to achieve the best results:

1. Preheat Oven: First, preheat your oven to 350°F (175°C) and grease an 8×8-inch baking pan.
2. Prepare Peaches: In a large mixing bowl, combine the diced peaches, 2 tablespoons granulated sugar, lemon juice, and vanilla extract. Toss gently until peaches are coated and set aside.
3. Combine Dry Ingredients: In another bowl, mix the flour, oats, baking powder, salt, and cinnamon together until well combined.
4. Make the Crumble: In a separate bowl, cream together the softened butter, brown sugar, and granulated sugar until the mixture is light and fluffy. Gradually add the dry ingredients to the butter mixture, mixing until crumbly and well combined.
5. Assemble Bars: Take half of the crumble mixture and press it firmly into the bottom of the prepared baking pan to create an even layer.
6. Add Peach Filling: Spoon the peach mixture over the crumble base, spreading it evenly across the surface.
7. Top with Remaining Crumble: Crumble the remaining oat mixture over the peach layer to cover it evenly.
8. Bake: Place the pan in the preheated oven and bake for 30-35 minutes, or until the top is golden-brown and the filling is bubbly.
9. Cool: Remove the baking pan from the oven and allow the bars to cool in the pan for 15–20 minutes.
10. Slice and Serve: After cooling, cut the bars into squares, ready for serving.

These steps will guide you in creating delightful Golden Peach Crumble Bars with ease.