Creating these Strawberry Pop Tart Cookies can be straightforward if you follow these simple steps:

1. Preheat the Oven: Preheat your oven to 350°F (175°C). Line baking sheets with parchment paper.
2. Mix Dry Ingredients: In a bowl, whisk together the all-purpose flour, baking powder, and salt. Set aside.
3. Cream Butter and Sugar: In a separate large bowl, cream together the softened butter and granulated sugar until light and fluffy.
4. Add Egg and Vanilla: Beat in the egg and vanilla extract, mixing until well combined.
5. Combine Mixtures: Gradually add the dry mixture to the wet ingredients, mixing until the dough comes together.
6. Form Cookies: Roll out the dough on a lightly floured surface to about ¼ inch thickness. Cut out rectangles or desired shapes. Place half of the shapes on the prepared baking sheets, then spoon a small amount of strawberry jam onto the center of each shape.
7. Top and Seal: Place the remaining dough shapes on top of the jam-covered ones. Press the edges to seal. You can use a fork to crimp the edges for decoration.

8. Bake: Bake in the preheated oven for about 20-25 minutes or until the edges are lightly golden. Let cool on baking sheets for 10 minutes before transferring to wire racks to cool completely.
9. Prepare Frosting: While the cookies are cooling, mix the powdered sugar with enough milk to achieve a thick, spreadable consistency.
10. Frost and Serve: Once the cookies are cool, spread the frosting on top and add sprinkles if desired.

Following these easy steps will help you make Strawberry Pop Tart Cookies that are not only delicious but also visually appealing.