Another old recipe on an old yellow recipe card, from years ago.
Melt 1/2 cup of the chocolate chips and butter over low heat; cool.
Mix with remaining chips, eggs, sugar, flour, baking powder, salt, vanilla, and nuts.
Drop dough by spoonfuls onto ungreased baking sheet, press marshmallow into center of each mound.
Bake about 8 minutes at 400F, until no imprint is left when touched.
Makes 4 dozen.