In a large mixing bowl, combine flour, baking soda, and salt.

In another bowl, cream butter, granulated sugar, and brown sugar until light and fluffy.

Add the egg and vanilla extract, mixing well until fully incorporated.

Gradually add the dry flour mixture into the wet ingredients, stirring gently until just combined.

Using a cookie scoop, flatten a portion of dough in your hand, place a dollop of pistachio cream in the center, and fold the dough around it.

Roll the dough into a ball and place on a parchment-lined baking sheet.

Cover and refrigerate the dough balls for about 30 minutes.

Preheat the oven to 350°F and bake the chilled dough balls for 10-12 minutes.

Remove from the oven and let cool on the baking sheet for about 5 minutes before transferring to a cooling rack.