Oatmeal Chocolate Chip Cookies are gooey, chunky, and worthy of dunking into a glass of milk. If you love cookies that are crispy on the outside and melted on the inside, this recipe's for you!
Cut cold butter into cubes and add to a mixing bowl. Beat for 1 minute on medium speed with mixer.
Add brown sugar and granulated sugar. Beat with mixer until creamy.
Scrape down the sides with a spatula and beat again.
Add eggs and vanilla, beat until creamy.
In a separate bowl, mix flour, cornstarch, oats, baking soda and salt until well blended.
Gradually add dry ingredients to wet ingredients in the mixing bowl while the mixer is on low speed. Stop mixer and scrape the sides with a spatula. Blend again until mixed well.
Add raisins, walnuts and chocolate chips. Stir well. Dough will be thick. Scrape sides and scoop out dough with a medium cookie scoop onto a half size sheet pan. You should be able to get 12 scoops per pan if spreading 2 inches apart.
Bake at 400 degrees for 8 to 10 minutes only. Don't bake more than 10 minutes even if you think you should! Remove cookies before they start to turn brown and allow to sit on sheet pan for 10 minutes while cooling. Transfer to a cooling rack.
Dough makes 24 cookies.
Notes
You can freeze these cookies after they've cooled completely by placing them on a cookie sheet in the freezer. Once frozen, transfer to plastic bags and freeze for up to 1 month.
To thaw frozen cookies, take out of freezer and place on cookie sheet in a single layer for 2 hours until thawed, or put individual cookies in microwave for 15 to 30 seconds.