Preheat oven to 350 degrees F.  In a skillet, melt the butter over medium to medium low heat until butter has become foamy and browned. After browned, pour into a heat safe container and allow it to cool for 10 minutes.

Meanwhile, combine flour, baking powder, baking soda, chai spice, and kosher salt in a bowl and whisk together.

In a separate bowl, pour in cooled brown butter and then add vanilla extract, sugar, and dark brown sugar. Whisk together. Then add each egg, one at a time, whisking constantly until each egg is incorporated into the mixture. Scrape down the sides of the bowl as needed.

Add butter mixture to the dry ingredients and fold together until there are no dry patches of flour. Add about 1/4 cup of sugar to a small bowl. Spoon out 2 tbsp of cookie dough and roll into a ball to form the cookie. Roll cookie in small bowl of sugar and place on a baking sheet.

Bake for 12 minutes for a gooey cookie and 15 minutes for a crispier cookie. Allow to cool.