In a glass bowl melt squares of chocolate and butter for about 2-3 minutes. Stir until completely melted.

Add 3 eggs and beat until they are well blended.

Now stir in your sugar and flour (nuts if you are using them as well) and mix well.

Spread into an 8 inch square pan (I lined mine with parchment to make it easier to remove).

Tap on counter a couple times.

Place in a preheated 350 degree oven for about 25 to 30 minutes.

Remove and top with marshmallows and chocolate chips. Stick back in the oven for about 5 or so minutes.

Remove and let cool.

Cut up into squares and serve with a smile.