I love this recipe, especially the cinnamon!
Source: Quaker Oats
1 cup unsalted butter, softened
1 cup firmly packed light brown sugar
1/2 cup sugar
1 tsp vanilla extract
1 1/2 cups all purpose flour
1 tsp baking soda
1 tsp cinnamon
3 cups old fashioned oats
1 cup raisins*
Preheat oven to 350 degrees. Line cookie sheets with parchment paper. Combine butter and sugar in a mixing bowl and beat until creamy. Add in eggs and vanilla and beat well. Add flour, baking soda, cinnamon, and salt and mix until well incorporated. Add oats and raisins and mix in by hand until evenly mixed. (A sturdy wooden spoon works well for this as the batter will be quite stiff.) Drop in rounded spoonfuls onto prepared cookie sheets and bake for approximately 8 to 10 minutes until golden brown. Cool for about a minute and then transfer to a wire rack and cool completely. Store in an airtight container. Recipe will yield about 4 dozen cookies depending on size.