OPTIONAL: Additional butterscotch chips to melt and drizzle on top of cooled cookies. Coarse salt to sprinkle on top
Instructions
In a medium bowl, whisk together the flour, salt, baking powder, baking soda, and cinnamon. Set aside.
1 ½ cups all-purpose flour, ¼ teaspoon salt, ¾ teaspoon baking powder, ¼ teaspoon baking soda, ½ teaspoon ground cinnamon
In a stand mixer with a paddle attachment, add the softened butter, granulated sugar, and brown sugar. Cream together until smooth, about 1 minute on low speed, scraping down the sides of the bowl halfway through.
8 tablespoons unsalted butter, ¼ cup white granulated sugar, ½ cup brown sugar
Pour in the vanilla and milk and mix until well combined.
1 teaspoon vanilla extract, ¼ cup whole milk
Add the dry ingredients. Mix by hand with a silicone spatula until just combined and there are no streaks of flour. Avoid overmixing.
Fold in the chocolate chips and butterscotch chips. Cover the cookie dough and chill in the refrigerator for at least 1 hour. You can prepare the dough the day before and let it chill overnight.
⅔ cup semi-sweet chocolate chips, ⅔ cup butterscotch chips
Once the dough has chilled, preheat the oven to 350°F and line a cookie sheet with parchment paper.
Scoop out the dough with a cookie scoop (about 2 tablespoons, 45 grams each) and place on the baking sheet at least 2 inches apart.
Bake about 9-12 minutes on the center rack, until the center of the cookie is set (not doughy and gooey). Try not to overbake them; the cookies will continue to bake a bit while they cool. NOTE: These cookies puff up in the oven, then sink down and change shape while cooling.
Remove from the oven and top with additional chocolate chips and butterscotch chips. Let the cookies cool on the baking sheet about 4 minutes.
Move to a cooling rack and let cool for an additional 20 minutes. OPTIONAL: Drizzle with additional melted butterscotch chips and sprinkle on flaky sea salt.
Notes
Tip 1: Don't skip chilling the dough. Chilling allows the butter to firm up and give the cookies a taller, chewier texture.
Tip 2: Avoid overbaking! Remember the cookies will continue to bake a bit while they cool on the cookie sheet.
Make ahead: Dough keeps in an airtight container in the fridge for up to 3 days. Just scoop and bake.
Freezing: Freeze scooped dough balls on a tray for 1 hour, then transfer to a bag or container. Bake straight from frozen, adding 1-2 extra minutes.
Storage: Store baked cookies in an airtight container on the counter for about 3 days.
Dairy-free: Use vegan butter sticks (not a spreadable tub), soy, almond, or oat milk, and dairy-free chocolate and butterscotch chips.
Gluten-free: Use a 1:1 gluten-free baking flour blend.