Butterscotch chocolate chip cookies are a delicious blend of sweet flavors in every chewy cookie. Packed with butterscotch and chocolate in every bite, you'll want to eat these cookies by the handful.
Mix dry ingredients. In a medium bowl, whisk together flour, cornstarch, baking powder, baking soda, and salt. Set aside.
Cream butter and sugars. In a large bowl, beat butter, brown sugar, and granulated sugar until light and fluffy.
Add egg and vanilla. Mix in the egg and vanilla extract until fully combined.
Combine dough. Add the dry ingredients to the wet ingredients and mix just until no dry streaks remain.
Fold in chips. Gently fold in chocolate chips and butterscotch chips until evenly distributed.
Portion and chill. Scoop dough into 2-tablespoon portions and place on a parchment-lined baking sheet, spacing 2 to 3 inches apart. Freeze for 10 minutes while preheating the oven to 350°F.
Bake. Bake for 13 to 15 minutes, until edges are set. If desired, press extra chips on top immediately after baking.
Cool. Let cookies cool on the baking sheet for 10 to 30 minutes before transferring to a wire rack. Repeat with remaining dough.
Serve. Enjoy immediately or store for later.
Notes
Flavor Variations. Add one box of dry pudding mix, such as butterscotch, vanilla, cheesecake, or chocolate, with the dry ingredients.
Texture Tip. Chilling the dough helps prevent excessive spreading. Avoid placing dough on a warm baking sheet.
Cooling Matters. Allow cookies to cool on the pan to finish setting without overbaking.
Storage. Store in an airtight container at room temperature up to 1 week or freeze up to 3 months.