This week, Mallomars turned the ripe old age of 100. Yup, those cookies layered with marshmallow, chocolate, and graham cracker have been around an entire century. And with their fool-proof combination of s’mores ingredients, we can understand why. Even if the store-bought variety make you a little nervous, you can still join in the joyous celebration of the sweet’s 100th birthday. Here are six recipes that use natural versions of Mallomar ingredients—including Mallomar brownies and PB&J Mallomars.

Click through the gallery to see delicious elevated and elaborated Mallomar recipes.