Golden Graham S'mores Treats

Memorial weekend came with a big rainstorm for most of the weekend. My hubby just had hernia surgery, so both of my kids came home to help with yard work and celebrate the holiday. We got the yard work done in the nick of time, but my plans for a bon fire with hot dogs and s'mores went away with the rain, so we had mini-hamburgers  (sliders) cooked inside and for dessert I made these treats--they tasted like s'mores but even better. There are a lot of variations of this recipe on the internet, but I thought I could make them like rice krispie treats but with golden grahams, milk chocolate chips and mini-marshmallows. We loved them.... they didn't last very long, I didn't get a very good pic because we were too busy eating them.

Golden Graham S'mores Treats
1/4 cup butter
1-10.5 oz (6 cups) bag mini marshmallows plus 2 cups to stir in later
7 cups Golden Graham Cereal
2 cups Milk Chocolate Chips

Spray a 13x9 in pan with non-stick cooking spray.
In a large saucepan over medium low heat melt the butter; then stir in the package (6 cups) mini-marshmallows, stirring until all the marshmallows are melted.
Remove from heat and stir in the Golden Graham Cereal. Let sit for a minute or two.
Next pour in the 2 cups extra marshmallows and the chocolate chips; stir to combine. It might be a little tricky to stir, but keep at it, and don't worry if the chips melt, you want that, and some won't melt completely, but that's good too.
Pour the mixture into your prepared man, and press out evenly. (Hint: Spray a spatula or your hands with non-stick cooking spray to press into your pan, keeps the stuff from sticking)
Let cool (if you can) and cut into squares! Enjoy!!! (we did)!