1️⃣ Preheat Oven & Prepare Baking Sheet
Preheat oven to 375°F (190°C).
Line a baking sheet with parchment paper.
2️⃣ Mix the Wet Ingredients
In a large mixing bowl, cream the butter, brown sugar, and granulated sugar together until light and fluffy.
Add the eggs and vanilla extract; mix well.
3️⃣ Combine the Dry Ingredients
In a separate bowl, whisk together flour, baking soda, salt, and cinnamon.
4️⃣ Form the Dough
Gradually add the dry ingredients into the wet mixture, stirring until combined.
Fold in rolled oats, raisins/chocolate chips, and nuts (if using).
5️⃣ Shape the Cookies
Drop rounded tablespoonfuls of dough onto the prepared baking sheet, spacing them about 2 inches apart.
6️⃣ Bake to Perfection
Bake for 10-12 minutes or until the edges are light golden brown.
Let cookies cool on the baking sheet for 5 minutes, then transfer to a wire rack.