These delicious little treats combine three all-time favorites (peanut butter, marshmallow, and chocolate) and are a cinch to make. Young helpers will enjoy snipping the marshmallows in half and breaking the chocolate bars into small pieces.
Heat the oven to 375. Place the butter and sugar in a large bowl and blend with an electric mixer.
Add the peanut butter, egg, and vanilla extract, combining thoroughly. In a separate bowl, combine the salt, baking soda, and flour, then mix them into the wet ingredients.
Shape the dough into 1 1/4-inch balls and bake for 8 minutes on an ungreased cookie sheet. Meanwhile, your child can break the chocolate bars into small squares and use kitchen shears (with your supervision) to snip the marshmallows in half lengthwise.
Remove the cookies from the oven, top each one with a marshmallow half, and return the tray to the oven for an additional 3 to 4 minutes.
Finally, remove the cookies from the oven and place a piece of chocolate atop the marshmallows. Allow the cookies to remain on the baking sheet for 5 minutes before transferring them to cooling racks. Makes 3 1/2 to 4 dozen cookies.