In a large mixing bowl, beat together the butter and both sugars until creamy. Add the egg and vanilla and stir until combined.
In a separate bowl, whisk together the flour, salt, and baking soda.
With the mixer on low, slowly add the dry ingredients to the wet ingredients. Mix until the dough comes together.
Stir in the chocolate chips.
Turn the dough out onto a piece of parchment paper and roll it out to ¼ inch thickness.
Use a 4-inch round cookie cutter and cut out circles. Gently press each circle of cookie dough onto an upside-down jumbo muffin tin. The dough will be drier than usual, so you’ll have to be very gentle with it.
Bake at 375°F for 10 minutes.
Allow to cool and gently remove from the pan.
Notes
I used a jumbo muffin tin, you could also make small, bite-size cookie cups by using a smaller muffin tin or even a mini muffin pan.
You can use a piping bag to help make it easier to fill your cup with your chosen filling.
Pop a piece of bread in the container along with the cookie cups if they are getting too hard.