Preheat oven to 350 degrees F and spray the mini muffin pan with non-stick cooking spray.
Melt the butter in microwave for 30 seconds.
In a bowl, add the crushed graham crackers and melted butter. Stir the mixture, coating the butter in the graham crackers.
To the mini muffin pan add 1 tablespoon of crust to each cup. Press the crust down firmly using the back of a tablespoon or use your fingers.
Bake the crust for 5 minutes.
While the crust is baking, start to cut the large marshmallows in half with a scissor.
Remove the crust from the oven and add a Reese’s Miniature Cup and half a large marshmallow to each cup.
Put the pan under the broiler on low for 5 minutes or until the marshmallows are golden brown. It is important to keep a close eye on the Reese’s S'mores Bites while under the broiler.
Let the Reese’s S'mores Bites cool for one hour, use a small spoon or knife to release the Reese’s S'mores Bites from the pan.