These soft, thick, and oh-so-chocolatey cookies are about to become your favorite cookie! Fill with chocolate chips, m&M’s, or any of your favorite mix-ins!

Dark Chocolate Cookies
These soft, thick, and oh-so-chocolatey cookies are about to become your favorite cookie! Fill with chocolate chips, m&M's, or any of your favorite mix-ins!

Ingredients
- ½ cup unsalted butter (1 stick) softened
- ¾ cup light brown sugar
- ¼ cup granulated sugar
- 1 large egg + 1 yolk (i.e. 1 whole egg + 1 extra egg yolk)
- 1 teaspoon vanilla extract
- ½ teaspoon baking soda
- ½ teaspoon salt
- ½ cup dark cocoa powder I used Hershey's "Special Dark"
- 1 ½ cups all-purpose flour
- 1 cup semi-sweet chocolate chips (or other mix-ins of your choice!)
Before you begin! If you make this, will you do me a huge favor and leave a review and rating letting me know how you liked this recipe? This helps my small business thrive so I can continue providing free recipes and high-quality content for you.
Instructions
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Preheat oven to 350°F.
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In a large bowl, use an electric mixer on medium-high speed to cream together softened unsalted butter (½ cup, 1 stick), light brown sugar (¾ cup), and granulated sugar (¼ cup) for about 1 minute.
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Add the eggs (1 whole egg + 1 extra egg yolk) and vanilla extract (1 teaspoon) and mix on low speed until combined.
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Add in baking soda (½ teaspoon) and salt (½ teaspoon) and mix for another 5-10 seconds until combined.
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Add dark cocoa powder (½ cup) and all-purpose flour (1 ½ cups) and mix on medium until combined.
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Add in chocolate chips (1 cup) and mix until just combined.
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Scoop dough into 1/4 cup (4 tablespoons) sized scoops (I use this stainless steel cookie scoop!), roll into balls, tehn gently flatten each dough ball into a 1/2" thick disc; this will also help them spread instead of be puffy.
If desired, press extra chocolate chips on top of each cookie for a pretty presentation.
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Bake at 350°F for 10-12 minutes. Do not overbake. The cookies will continue to bake on the hot pan, allowing them to firm up without overbaking.
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Allow to cool, then enjoy! It's important for them to cool; they will be fragile while they're warm.
Last Step! Please leave a review and rating letting me know how you liked this recipe! This helps my small business thrive so I can continue providing free recipes and high-quality content for you.
Recipe Notes
To make a M&M variation, use 1/2 cup chocolate chips & 1/2 cup M&M’s.