1. Prepare the Crust:

1. Preheat oven to 350°F (175°C) and line baking sheets with parchment paper.
2. In a large bowl, cream together butter, granulated sugar, and brown sugar until light and fluffy.
3. Beat in eggs one at a time, then stir in vanilla extract.
4. In a separate bowl, whisk together flour, baking soda, and salt. Gradually add to the wet ingredients, mixing until combined.
5. In another bowl, mix cream cheese, powdered sugar, strawberry jam, and diced strawberries until smooth.
6. Take a tablespoon of cookie dough, flatten it, and place a teaspoon of the cheesecake filling in the center. Cover with another tablespoon of dough, sealing the edges.
7. Place cookies on the prepared baking sheets and bake for 12-15 minutes, or until edges are golden brown.
8. Let cool on the baking sheet for 5 minutes before transferring to a wire rack to cool completely.