Line a small cookie sheet with parchment paper and mix cream cheese, sugar, and vanilla until fluffy.
Scoop 18 portions of cheesecake filling onto the tray and flatten them slightly. Freeze until solid.
Add diced strawberries and sugar to a pot and cook for about 45 minutes until thick. Chill in the fridge.
Preheat oven to 350°F and line two baking sheets with parchment.
Whisk flour, baking powder, baking soda, and salt in a bowl and set aside.
Cream the softened butter and sugar together until fluffy.
Add egg and vanilla and beat until very fluffy.
Add dry ingredients and mix just until combined.
Layer jam into dough by flattening and folding in portions to create visible jam swirls.
Divide dough into 18 scoops, flatten each, and place a frozen cheesecake disc in the center.
Seal the filling inside and shape into slightly flattened discs.
Roll each cookie in sugar and place on baking sheets.
Bake 6 cookies at a time for 11–12 minutes.
Cool on the tray for 10 minutes, then move to a wire rack to cool fully before serving.