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Preheat oven to 350 degrees.
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In a heavy bottomed sauce pan, melt butter until browned. It takes about 5 minutes for butter to begin to smell nutty and start to brown, but watch carefully because it goes from perfectly browned to burned very fast.
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Once browned, remove from heat and allow to cool for 5 minutes.
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Add browned butter and sugars to the bowl of a mixer and mix until combined.
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Add eggs and yolks one at a time.
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Add the vanilla.
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In a separate bowl, combine your dry ingredients.
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Gradually add flour to the wet mixture and mix on low until just combined.
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Turn mixer off and mix in chocolate chips.
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Refrigerate dough for at least 1 hour.
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Once dough has chilled, scoop out a 1 in ball of dough.
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Flatten ball slightly and top with graham cracker, marshmallow, and some extra chocolate.
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Top with another 1 in dough ball.
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Pinch together the sides of the top and bottom dough balls and place on a lined cookie sheet.
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Bake for 15-17 minutes.