Hi Peg;
Here's the recipe you were looking for.
Mamie Eisenhower's Fudge






12 OZ. SEMISWEET CHOCOLATE BITS
12 OZ. GERMAN SWEET CHOCOLATE, BROKEN INTO PCS.
ONE PINT MARSHMALLOW CREAM
TWO CUPS SHOPPED WALNUTS
ONE CAN (13 - OZ.)EVAPORATED MILK
FOUR AND ONE-HALF CUPS SUGAR
TWO TABLESPOONS BUTTER
PINCH OF SALT


In a large bowl, combine chocolate bits, Sweet Chocolate, Marshmallow Cream and chopped Nuts. Reserve. In a saucepan, over medium heat, combine milk, sugar, butter and salt. Bring to boiling, stirriing constantly.Cook, stirring continously, for six to seven minutes. Pour the boiling milk and sugar mixture over the reserved chocolate-nut mixture, and beat until the chocolate is melted and the fudge is creamy. Pour fudge mixtue into buttered 9 X 9 inch pan, and let cool at room temperature for a few hours or overnight, before cutting into squares. Store in tin box or other airtight container. Makes about (5) pounds of fudge. Enjoy!!