Ingredients
Method
- Beat the butter, brown sugar and granulated sugar on medium for 2 to 3 minutes until creamy.
- Beat in the eggs and egg yolk one at a time, then the vanilla.
- Mix in the baking soda, cinnamon and salt, then add the flour and mix on low just until combined.
- Stir in the oats and any mix-ins. Cover and refrigerate for 30 minutes or up to 3 days.
- Heat the oven to 350°F (175°C) and line baking sheets with parchment. Scoop 2-tablespoon balls 2 inches apart.
- Bake one sheet at a time for 10 to 12 minutes, until the edges are golden and the centers look slightly underbaked.
- Cool on the sheet for 5 minutes, then transfer to a wire rack.
Notes
Oats: Old-fashioned oats give the chewiest texture. Quick oats make a softer, cakier cookie.
Make ahead: Freeze dough balls up to 3 months and bake from frozen, adding 1 to 2 minutes.
Storage: Airtight at room temperature up to 5 days.
Nutrition is an estimate per cookie without mix-ins.
