I have dozens of recipes for oatmeal cookies and recently had a craving for them. Rather than making a whole batch of cookies that I would no doubt eat within a few days, I exercised some self-control and made one extra-large cookie. It’s the oatmeal counterpart to this Single Serving Chocolate Chip Cookie. My craving was handled on the spot and I didn’t have another 18 cookies starting back at me on the counter.  Win-win. Other wins about this recipe include that it’s made in one bowl and without a mixer. This giant cookie is wonderfully soft but the oats give it chewiness.  And of course there is chocolate galore. Not sure if this is a splurge cookie for one or a be-nice-and-share-some kind of cookie for two but it weighed about a half pound and my hand could’t even fit around it. Not complaining.

To make this single serve cookie recipe, you’ll need: 

Egg yolk Unsalted butter Granulated sugar Light brown sugar Vanilla extract Old-fashioned oats All-purpose flour Baking soda Cornstarch Kosher salt Semi-sweet chocolate chips

This single cookie recipe is a breeze to make! Beat the egg, butter, sugars, and vanilla until smooth and slightly fluffed, then add in the dry ingredients.  Roll dough in your hands to create a ball and then flatten about halfway or so that the mound is about 1 1/2 inches thick. Wrap it in plastic wrap, then chill for two hours.  Once the dough has chilled, bake until the edges have set and the top is just set, even if slightly undercooked, pale, and glossy in the center. 

Yes! With all cookie baking, I recommend chilling the dough because the finished product will bake up thicker and be less prone to spreading from a little chill time, even if it’s just a flash-chill in the freezer for 30 minutes. I tried baking this cookie without chilling the dough and the results was nowhere near as thick.

Can I Use Instant Oats? 

No, make sure to use old-fashioned whole-rolled oats. Quick-cook oats act more like flour and will not work here.

Note that you only need one egg yolk for this big chocolate chip cookie, not the whole egg. Save the egg white for another use or discard.  I’m sure you could adjust this recipe slightly to make a small batch of oatmeal chocolate chip cookies. The ingredients would be the same, but instead of forming one giant cookie you’d need to form three or four.  If desired, you could shape and freeze the cookie dough and bake it off later. You’d want to bake the dough from frozen and add a couple minutes to the cook time. 

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