Preheat oven to 350°F. Line a large baking sheet with aluminum foil or parchment paper.
Place the cookies 2 inches apart on the baking sheet and bake per package directions.
16 ounces ready-to-bake large chocolate chip cookies
When cookies are ready, transfer cookies and tray to a cooling rack.
Turn the oven to broil.
Place 8-10 mini marshmallows on the top of each cookie and very lightly press down (just so marshmallows will stay put).
10 ounces miniature marshmallows
Place the cookies back in the oven, under broil, just until marshmallows begin to turn golden brown. **Watch closely – marshmallows burn quickly!
Remove the cookies from the oven, place the tray with the cookies on a cooling rack and allow them to cool completely.
Once cookies have cooled, melt the chocolate (melt in 30-second intervals in a microwave-safe bowl until smooth and fully melted when stirred), then dip each cookie halfway into the melted chocolate.
10 ounces milk chocolate melting wafers
Sprinkle crushed graham cracker crumbs over the chocolate.
1 cup crushed graham crackers
Transfer cookies to a cooling rack until chocolate is set.