• Chop up pecans if they are not already chopped.
• Add butter to a large pot on the stove and turn the heat to medium.
• Once the butter begins to melt, add in 3/4's the bag of marshmallows, reserving the rest for later.
• After the marshmallows are melty, stir in chocolate rice cereal and pecans and the remaining marshmallows.
• Quickly stir together and pour into the square pan that was lined with wax paper.
• Press the mixture down firmly to create extra chewy bars.
• Allow to cool to harden, or you can eat right away.

Toppings:

• If you would like to make these extra fancy, you can add marshmallows and pecans to the top before the mixture hardens! Or you can add a drizzle of melted chocolate to the top followed by some flakey salt!