In a mixing bowl, whisk together the flour, baking soda, baking powder, salt, and cinnamon until well combined.1 ½ cups all-purpose flour
In another bowl, use a hand mixer or stand mixer to cream the butter, granulated sugar, and brown sugar together, until the mixture is light and fluffy. ½ cup unsalted butter, room temperature
Add the egg and vanilla extract, and mix until well combined.1 large egg
Gradually mix in the dry ingredients and fold in the dark chocolate chips and butterscotch chips. Don't overmix!⅔ cup dark chocolate chips
Wrap the dough in plastic wrap and chill in the fridge for at least 12 hours.
Preheat your oven to 350°F and line a baking sheet with parchment paper.
Scoop out large portions of dough (about 3-4 tablespoons each) and place them on the baking sheet, leaving some space between each other.
Bake the cookies for 10-12 minutes, or until the edges are lightly golden.
Remove the cookies from the oven and let cool on the baking sheet for 5-10 minutes before transferring them to a wire rack to cool completely.
Finish by sprinkling them with a pinch of flaky sea salt and additional butterscotch chocolate chips. Flaky sea saltButterscotch chips
Notes
Be careful not to overmix the dough, especially when you're mixing the wet and dry ingredients. This will cause the cookies to become hard and dry.
Make sure you weigh the flour and the other ingredients correctly. It really makes a huge difference in the texture of your cookies.
To lend the cookies a more deeper, caramel-like flavor, brown the butter in a pan over low heat, allow it to cool down and come to room temperature, and then use it for the recipe.
Want those perfectly round cookies? Take a large glass and place it over the cookie right after it is out of the oven. Swirl it in a circular motion for a couple of times, and you'll have the perfect round shape!
You can make a big batch of cookie dough, portion it out on a baking sheet and freeze until solid. Then, place the frozen cookie dough balls in a freezer safe container or bag for up to 2 months.