In a separate mixing bowl, add the brown sugar, butter and sugar. (You can also use the bowl of a stand mixer with a paddle attachment).
1 ¾ cup brown sugar, 18 tablespoons butter, ¼ cup sugar
Blend with an electric mixer on medium speed for 1 1⁄2 minutes, until creamy.
Add in the eggs, egg yolks and vanilla extract and and blend until just combined.
2 large eggs, 2 egg yolks, 1 ½ teaspoons vanilla extract
Add in the flour mixture in batches and mix until just barely incorporated.
Using a cookie scoop (mine is 1 ½ tablespoons), scoop the cookie dough and place it into the prepared baking sheet about 4” apart.
Place on the center rack in the preheated oven and bake for 20 minutes.
Then remove from the oven and let the cookies set 3-4 minutes on the cookie sheet. I like to tap the baking sheet on the counter to help level the cookies and make them a little chewier.
Transfer to a wire cooling rack and cool completely.
Repeat with the remaining cookie dough.
Notes
Add chopped pecans or walnuts
Sprinkle with sea salt if desired.
Use light or dark brown sugar.
Cinnamon is optional. Leave it out if desired.
Use unsalted butter may be used but add 1⁄2 teaspoon of salt.Use a Silicone baking mats like this one instead of parchment paper. Here is a link to
my favorite on Amazon. https://amzn.to/4b7WxaeBe sure you only mix until just combined. Over mixing can cause the gluten to overdevelop and make the cookies crumbly.Storage:Room Temperature: Store cooled cookies in an airtight container or baggie for up to 4 days.
Freeze: You can freeze these cookies in a freezer bag or container for up to 2 months. Thaw at room temperature.