Step 1

Preheat oven to 350°F and line a baking sheet with parchment paper.

Step 2

In a small pot, heat butter on medium heat, stirring frequently. The melted butter will bubble up and the milk solids will separate out. Once the milk solids turn a toasted dark brown colour and the butter smells nutty, remove from heat and pour 115g of the browned butter into a large mixing bowl and set aside to cool down.

Step 3

In a small bowl, whisk together flour, baking powder, baking soda, and salt. Set aside.

Step 4

To the bowl of browned butter, add granulated sugar and brown sugar. Whisk until combined. Add the egg and vanilla extract and whisk until smooth and creamy.

Step 5

Add the flour mixture to the butter mixture and fold together with a spatula until some flour patches remain.

Step 6

Add the chopped chocolate or chocolate chips and pistachios. Finish folding together until just combined.

Step 7

Use a large cookie scooper and scoop out the cookie dough. Release them onto your lined baking sheet, leaving about 2" in between each dough ball.

Step 8

Bake for 10-12 minutes or until the edges just barely begin to brown. About 2 minutes before they're finished baking, press a few chocolate chunks into the tops of the cookies (optional).

Step 9

Once out of the oven, sprinkle with more pistachios and flaky salt. Let cool on the baking sheet for 5-10 minutes before transferring to a wire rack to cool completely or enjoy warm!