Creating these Brown Sugar Pop Tart Cookies is a simple and enjoyable process. Just follow these easy steps:

1. Preheat the Oven: Preheat your oven to 350°F (175°C) and line a baking sheet with parchment paper.

2. Mix Dry Ingredients: In a medium bowl, whisk together the flour, baking powder, baking soda, cinnamon, and salt.

3. Cream Butter and Sugar: In a large bowl, beat the softened butter and brown sugar until light and fluffy. This should take about 2-3 minutes.

4. Add Egg and Vanilla: Mix in the egg and vanilla extract until well combined.

5. Combine Mixtures: Gradually add the dry ingredients to the wet mixture, mixing until just combined. Be careful not to overmix.

6. Chill the Dough: Wrap the dough in plastic wrap and refrigerate for about 15-20 minutes. Chilling helps the cookies hold their shape.

7. Roll Out the Dough: On a floured surface, roll out half of the dough to about ¼ inch thickness. Using a sharp knife or a cutter, cut into rectangles (approximately 3 by 4 inches).

8. Add Filling: Place a dollop of your chosen filling in the center of half of the rectangles. Make sure to leave space around the edges.

9. Top the Cookies: Roll out the remaining dough and cut out an equal number of rectangles. Place these on top of the filled rectangles. Press down the edges to seal.

10. Egg Wash: Beat the additional egg and brush a thin layer over the tops of the cookies, giving them a shiny finish.

11. Bake: Place the cookies in the preheated oven and bake for 12-15 minutes or until golden brown.

12. Cool: Let the cookies cool on a wire rack before serving.

By following these steps, you’ll create cookies that are not only stunning but also incredibly delicious!