In a medium-sized bowl combine 1/3 cup of flour, 1/8 teaspoon of baking soda, and 1/8 teaspoon of salt. Give them a quick whisk to make sure everything is evenly distributed.
1/3 cup of all-purpose flour, 1/8 teaspoon of baking soda, 1/8 teaspoon of salt
In a separate large bowl, beat together 1/4 cup of softened unsalted butter, 1/3 cup of granulated sugar, and 2 tablespoons of brown sugar until they’re light and fluffy.
1/4 cup of unsalted, softened butter, 1/3 cup of granulated sugar, 2 tablespoons of packed brown sugar
Add in a large egg yolk, making sure to mix well. Then, stir in your 1/2 teaspoon of vanilla extract.
1 large egg yolk, 1/2 teaspoon of vanilla extract
Slowly incorporate your dry ingredients into the wet ingredients, mixing until just combined. Be careful not to overmix, as this can lead to tough cookies.
Finally, fold in 1/4 cup of chocolate chips or other mix-ins of your choice.
1/4 cup of chocolate chips or other mix-ins
Bake in a preheated toaster oven at 350°F (175°C) for 12 minutes. Check occasionally to make sure there's no burning.