Step 1

Preheat oven to 350°F. Line a baking sheet with parchment paper and set aside.

Step 2

In bowl of stand mixer fitted with the paddle attachment, mix the butter until smooth and then add the brown sugar and granulated sugar. Mix for 2 minutes on medium speed, scraping the sides down as needed.

Step 3

Next add the eggs and vanilla, baking powder, baking soda and salt and mix until smooth.

Step 4

Turn the mixer to low and add in the flour until incorporated.

Step 5

Stir in both chocolates.

Step 6

Form about 1/4 cup of cookie dough into a balls and place on baking sheet about 2 1/2 inches apart.

Step 7

Place remaining dough in the refrigerator until ready to bake.

Step 8

Bake for 9-10 minutes until edges are golden. Tops of cookies might seem undercooked. Make sure to not over-bake!

Step 9

Remove from oven and allow the cookies to cool on cookie sheet for 5 minutes, then transfer to a wire rack to continue cooling.

Step 10

Repeat with remaining dough.