These rich, chewy cookies contain no wheat flour or eggs, and—good news on sweltering days when you feel like having cookies around the house—require no oven heat. All you do is boil milk with unsalted butter and sugar to add to a mix of old-fashioned oats, chocolate chips, peanut butter, and vanilla. Mix, then form into cookies on waxed paper–lined baking sheets. Chill until the cookies set up, then gorge. For a fun twist, scoop your favorite ice cream flavor in between two cookies to make ice cream sandwiches.
For more, check out our roundup of no-bake cookie inspiration.