Preheat your oven to 350°F (175°C) and line two baking sheets with parchment paper.
In a large mixing bowl, cream together the softened butter, brown sugar, and granulated sugar using an electric mixer on medium speed until the mixture is light and fluffy (about 2-3 minutes).
1 cup unsalted butter, 1 cup brown sugar, 1/2 cup granulated sugar
Add the eggs one at a time, beating well after each addition, followed by the vanilla extract. Mix until fully incorporated.
2 large eggs, 1 tsp vanilla extract
In a separate bowl, whisk together the all-purpose flour, baking soda, and salt. Gradually add the dry ingredients to the wet ingredients, mixing until just combined.
2 1/4 cups all-purpose flour, 1 tsp baking soda, 1/2 tsp salt
Fold in the butterscotch chips using a spatula or wooden spoon, ensuring they are evenly distributed throughout the dough.
1 cup butterscotch chips
Using a cookie scoop or tablespoon, drop rounded balls of dough onto the prepared baking sheets, leaving about 2 inches of space between each cookie.
Before baking, lightly sprinkle flaky sea salt on top of each cookie for that delightful sweet-salty contrast.
flaky sea salt
Bake in the preheated oven for 10-12 minutes or until the edges are golden but the centers are still soft. Don’t overbake!
Remove from the oven and allow the cookies to cool on the baking sheets for 5 minutes before transferring them to wire racks to cool completely.