1-First Step: Preparation and Mise en Place Start by preheating your oven to 350°F (175°C). This temperature is ideal for baking chewy butterscotch chip cookies without burning them. Line your baking sheets with parchment paper to prevent sticking and make cleanup easier. If you do not have parchment, a light coating of cooking spray works too. Gather all your ingredients so they are at room temperature, specifically the butter and eggs. This helps them mix together more smoothly, creating a consistent texture throughout the dough.

2-Second Step: Creaming the Butter and Sugars In a large mixing bowl, combine the softened butter, brown sugar, and white sugar. Using a hand mixer or a stand mixer fitted with the paddle attachment, beat these ingredients on medium speed until the mixture is fluffy and pale. This step usually takes about 2 to 3 minutes. Creaming the butter and sugar incorporates air into the dough, which contributes to a lighter texture. The brown sugar is essential here because its molasses content keeps the cookies moist and chewy. Scrape down the sides of the bowl to ensure everything is well combined.

3-Third Step: Adding Wet Ingredients Add the eggs and vanilla extract to the creamed butter mixture. Beat on medium speed until the eggs are fully incorporated. This step adds necessary liquid and richness to the dough. The vanilla extract enhances the buttery notes of the butterscotch chips. If you are making a vegan version, this is when you would add your prepared flax eggs instead of regular eggs. Mix just until combined to avoid overworking the dough, which can lead to tough cookies.

4-Fourth Step: Mixing Dry Ingredients In a separate medium bowl, whisk together the flour, baking soda, and cinnamon. Whisking ensures the baking soda is evenly distributed, so every cookie rises perfectly. Gradually add this dry mixture to the wet ingredients while the mixer runs on low speed. Mix until just a few streaks of flour remain. Overmixing at this stage develops gluten, which can make the cookies tough instead of tender. The cinnamon adds a lovely warmth that pairs beautifully with the caramel flavors of the butterscotch.

5-Fifth Step: Incorporating Oats and Chips With the mixer on low speed or using a spatula, fold in the oats and butterscotch chips. The oats add a hearty chew and nutritional value, while the chips provide pockets of intense flavor. Ensure they are evenly distributed throughout the dough so every bite is delicious. The dough will be thick and slightly sticky. If you find the dough too soft to scoop, you can refrigerate it for 30 minutes. Chilling the dough helps prevent excessive spreading in the oven, resulting in thicker cookies.

6-Final Step: Baking and Cooling Scoop tablespoon-sized balls of dough onto your prepared baking sheets, placing them about 2 inches apart. The cookies will spread as they bake, so giving them space is crucial. Bake in the preheated oven for 10 to 12 minutes. You know they are done when the edges are golden brown, but the centers still look slightly soft and underbaked. They will continue to cook on the baking sheet. Let them cool on the sheet for 5 minutes before transferring them to a wire rack to cool completely. This resting period sets the structure, ensuring you get that perfect soft cookies texture.