First, start by creaming together the room temperature butter, white granulated sugar and dark brown sugar. You can use a stand or hand mixer for this.
Next, add in the egg and vanilla extract. Continue mixing to combine all the wet ingredients together.
In a separate bowl, whisk together the flour, baking powder and salt.
Next, add the flour mixture to your mixing bowl about 1/4 cup at a time so you don’t end up with a cloud of flour dust everywhere. Continue mixing until all of the flour has incorporated into the wet ingredients. Scrape the extra flour from the sides of the bowl as needed.
Now fold in the chocolate chips and blueberries gently being extra careful not to smash any of the blueberries in the process.
Next, preheat the oven to 350 degrees F while you prepare to transfer the cookie dough to baking sheets.
Prepare the baking sheets by lining them with parchment paper or spraying with non stick baking spray.
Next, use a small 1 inch ice cream scoop and scoop out 1 inch balls of cookie dough. If you don’t have a small ice cream scoop, use a tablespoon. They’re about the same size. Transfer the cookie dough balls to the baking sheets.
Bake the blueberry chocolate chip cookies in a preheated oven at 350 degrees F for 10-12 minutes maximum.
Next, remove them from the oven and let them sit undisturbed on the baking sheets for about 10 minutes. Then transfer them to a cooling rack to finish cooling down.
Finally, serve the cookies with a cold glass of milk and enjoy!