Crispy. Chewy. Gooey. Not your average Cinnamon Toast Crunch cookie! My delicious Cinnamon Toast Crunch cookies are made with a soft, cinnamon cookie dough, a gooey marshmallow centre, and a crunchy, Cinnamon Toast Crunch cereal exterior! This fun, tasty, and simple cookie recipe is perfect for kids and nostalgic adults alike!