How to Make Double Chocolate Chip Cookies

• Preheat oven to 375°F. Line two baking sheets with a baking mat or parchment paper. 
• In the mixing bowl, sift together flour, cocoa powder, baking powder, baking soda, and salt. Set aside. 
• In the mixing bowl of a stand mixer fitted with the paddle attachment, beat the butter and sugars on medium speed until light and fluffy. This takes about 2 minutes. If you are using a hand blender, this may take a few minutes longer. 
• Add egg and vanilla extract. Beat again until all is combined. Do not forget to scrape down the sides of the bowl as needed.
• Add the dry ingredients mixture and mix on low speed until all combined. Add chocolate chips and mix with the spatula. 
• Using an ice cream spoon or regular spoon, scoop 1 tablespoon-sized balls of dough into a lined cookie sheet. Place balls about 2 inches apart from each other. 
• Bake cookies at 375°F for 10-12 minutes. Add flaky sea salt when the cookies are still warm. This is optional.
• Let cookies cool on the sheet for a few minutes before moving them to a wire rack.