There is just something entirely comforting about a warm, ever so slightly melted chocolate chip cookie. And especially when you are greeted with said cookie upon checking into a hotel far from home. Such would be my personal experience during a not too distant hurricane evacuation from our home in Charleston, South Carolina. And yes, I was over the moon when Hilton/DoubleTree Hotels revealed This Copycat DoubleTree Chocolate Chip Cookie Recipe! This recipe is NOT your run of the mill average chocolate chipper. Nope. It's made with rolled oats, walnuts, and gooey semi-sweet morsels. And there's a peculiar ingredient hidden in these cookies, one I have certainly never seen in a chocolate chip cookie recipe before. Lemon juice. You read that correctly! The addition of lemon juice in the dough reacts with the baking soda to yield a much softer, chewier cookie. Bake up a batch of your own to experience their salty-but-sweet taste and melty deliciousness!