Step #1 Beat 3/4 c butter at medium speed with an electric mixer until creamy; slowly add sugar.
Step #2 Add egg & vanilla, mixing well.
Step #3 Combine flour & salt; add to butter mixture, mixing until mixed.
Step #4 Stir in 1 c chocolate morsels.
Step #5 Shape dough into 1 1/2- x 1/2-inch logs.
Step #6 Place on ungreased cookie sheets.
Step #7 Bake at 350F for 12 to 15 mins or until set.
Step #8 Remove to wire racks to cool.
Step #9 Combine remaining 1 c chocolate morsels & remaining 1/4 c butter in a small heavy saucepan; cook over low heat/flame, stirring often, until chocolate melts.
Step #10 Dip ends of cookies into mixture, & roll in sliced walnuts.
Step #11 Place on wax paper until chocolate is firm.
Step #12 Store in an airtight container; freeze up to 6 months, if desired.
Step #13 From "Christmas with Southern Living 1994.