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Preheat the oven to 350 degrees.
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Mix together the peanut butter, butter, brown sugar and sugar in a large bowl till light and creamy.
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Add in the egg and vanilla and mix till incorporated.
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In another medium sized bowl, mix the baking soda, baking powder, salt, flour and graham cracker crumbs.
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Add the flour mixture to the wet mixture and stir together till a soft dough is formed.
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Scoop dough into 1 inch sized balls onto a cookie sheet lined with parchment or a silicone liner.
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Press cookie balls down just a bit to flatten.
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Bake cookies for about 7 minutes until the top is golden.
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Cut marshmallows in half (scissors sprayed with pam work great) and unwrap candy kisses.
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Top each cookie with a marshmallow half with the sticky side down.
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Return cookies to the oven and bake for 1 to 1 1/2 minutes until marshmallows puff up.
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Remove tray from the oven and top each marshmallow with a Hershey Kiss.
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Allow cookies to rest on cookie sheet for 2 to 3 minutes, then move to a cooling rack to cool completely.