Cream together butter, sugar and brown sugar

Mix in vanilla

Mix in 2 eggs

In a separate bowl, combine flour, baking soda and salt.

Mix in 1/2 flour mixture with butter and sugar mixture.

After it's well blended mix in the other half of flour mixture

Fold in 1 cup of chocolate chips

Fold in 1 cup of m&ms

Chill cookie dough for 30 minutes in fridge.

Preheat oven to 350.

Bake cookies at 350 for 10 minutes.

Let cookies rest 5 minutes before transferring to cooling rack.