1 cup butter (softened)

3/4 cup brown sugar

1/2 cup sugar

2 eggs

1 teaspoon vanilla extract

1 1/2 cups all-purpose flour

1 teaspoon baking soda

1/2 teaspoon salt

2 cups rolled oats

Preheat oven to 180°C (350°F) and line a baking sheet with parchment paper.

Cream butter, brown sugar, and sugar until light and fluffy.

Add eggs one at a time, then mix in vanilla extract.

In another bowl, combine flour, baking soda, and salt.

Gradually add dry ingredients to the wet mixture and mix until combined.

Stir in rolled oats and optional add-ins like chocolate chips or raisins.

Scoop dough onto the baking sheet, spacing evenly.

Bake for 10–12 minutes until edges are golden.

Let cool before serving.