1. Preheat the oven to 350°F.
2. Place the peanut butter, butter, eggs and vanilla in the bowl fitted with the kneading/crushing blade. Mix at speed 10 for 40 seconds. Add sugars and mix at speed 10 for 30 seconds. Add oats and baking soda. Mix at speed 10 for another 30 seconds. Scrape down the sides of the bowl each time ingredients are mixed.
3. Stir in 3 cups of your favorite sweets, such as semisweet chocolate chips, butterscotch chips, mini white chocolate chips, raisins, candy coated chocolate pieces, sweetened dried cranberries, etc.
4. Drop heaping tablespoons of dough on a cookie sheet lined with parchment paper. Flatten slightly. Bake for 9-11 minutes or until set. Cool on a wire rack.