Follow these simple steps to create your delicious Salted Caramel Apple Pie Bars:

1. Prepare the Crust: Preheat your oven to 350°F (175°C). In a mixing bowl, combine flour, granulated sugar, baking powder, and salt. In a separate bowl, mix melted butter and beaten egg. Combine both mixtures until a dough forms.

2. Press the Crust in Pan: Press the dough mixture into the bottom of a greased 9×13-inch baking pan evenly. Use a spatula to smooth it down.

3. Make the Apple Filling: In another bowl, toss diced apples with brown sugar, cinnamon, nutmeg, lemon juice, and cornstarch. Make sure the apples are well coated.

4. Add Apple Filling: Spread the apple mixture evenly over the prepared crust in the baking pan.

5. Prepare for Baking: Bake in the preheated oven for 25-30 minutes, or until the apples are tender and the crust is lightly golden.

6. Make the Salted Caramel: In a saucepan over medium heat, melt granulated sugar, stirring constantly until it turns a deep amber color. Then, add butter, whisking until melted. Carefully pour in heavy cream and salt, stirring until smooth. Remove from heat.

7. Drizzle Caramel: Once the bars have baked, remove them from the oven and let them cool slightly. Drizzle the salted caramel generously over the top.

8. Cool Completely: Allow the bars to cool completely in the pan before cutting into bars.

9. Serve: Once cooled, slice the bars into squares and enjoy!

Following these simple instructions will guide you towards creating mouth-watering Salted Caramel Apple Pie Bars that are bound to impress everyone at the table.