Oatmeal chocolate chip cookies

Winter-y weather always makes me want to stay in my cozy apartment baking all day!  I had the luxury of doing that today so I decided to make an old favorite, oatmeal chocolate chip cookies. 

1 cup (2 sticks) butter, at room temperature
3/4 cup firmly packed light or dark brown sugar
1/2 cup granulated white sugar
1 large egg
1 tsp pure vanilla extract
1 cup all-purpose flour
1 tsp baking soda
1/2 tsp salt
1 tsp ground cinnamon
1/8 tsp ground nutmeg
3 cups rolled oats
2 cups semi-sweet chocolate chips
1 cup walnuts, chopped (optional)

Preheat the oven to 375 degrees F.

In a large bowl, cream the butter with the brown and white sugar together until creamy (~4 minutes).  Add the egg and vanilla, and mix on low speed until incorporated.

In a small bowl, combine the flour, baking soda, salt, cinnamon and nutmeg.  Add the flour mix to the butter mixture and mix well.  Sitr in the oats, chocolate chips and walnuts (if using). Drop by tablespoonfuls onto an ungreased cookie sheet about 2" apart.  Bake for about 12 minutes.