Step 1

Preheat the oven to 375º Fahrenheit. Line cookie sheets with silicone baking mats or parchment paper.

Step 2

In the bowl of a stand mixer, cream together the butter and the shortening until smooth.

Step 3

Add the sugars and beat again until smooth, scraping the sides of the bowl as needed.

Step 4

Add the vanilla and eggs. Beat until well mixed.

Step 5

Add the flour, baking soda and salt to the mixer bowl.

Step 6

Turn the mixer on slow at first just until combined, then turn on medium speed until mixed well, scraping the bowl to make sure everything is evenly mixed.

Step 7

Add the semi-sweet chocolate chips and ½ cup of mini chocolate chips. Mix just until combined.

Step 8

Using a large cookie dough scoop, scoop the cookie dough onto the baking sheets, leaving 3 inches between each cookie. I made big cookies, ¼ cup cookie dough for each (about 70 grams of dough for each cookie.)

Step 9

Press the remaining 1/2 cup of mini chocolate chips into the top of the cookie dough balls.

Step 10

Bake for 10-12 minutes or until the edges of the cookies are lightly golden brown.