1 1/4 cups shortening
2 cups granulated sugar
4 ounces unsweetened chocolate, melted
1/3 cup light corn syrup
2 1/2 tablespoons water
1 teaspoon vanilla extract
4 cups all-purpose flour
2 teaspoons baking soda
1/2 teaspoon salt
1/2 cup semisweet chocolate chips
6 cups sifted confectioners’ sugar
6 tablespoons warm water
Paste food coloring
Procedures : Cream shortening. Gradually add sugar, beating at medium speed of an electric mixer until light and fluffy. Add melted chocolate, eggs, corn syrup, water and vanilla extract. Mix well.
Combine flour, baking soda, and salt. Add to creamed mixture, beating just until blended. Shape dough into two 12-inch rolls. Wrap in wax paper. Chill several hours.
Unwrap rolls, and cut into 1/4-inch slices. Place on ungreased cookie sheets. Bake at 350 degrees F for 10 to 12 minutes. Cool on cookie sheets 5 minutes. Remove to wire racks to cool completely.
Spread frosting over cookies to within 1/8 inch of edge. Let stand until frosting sets.
Place chocolate morsels in top of a double boiler; bring water to a boil. Reduce heat to low. Cook until chocolate melts. Let stand until almost cool but not set. Spoon melted chocolate into decorating bag fitted with metal tip No. 2. For round pattern, pipe chocolate in 5 or 6 circles around top of cookie. Pull the point of a wooden pick across chocolate circles from the center to the outer edge. Repeat 8 or 10 times, spacing evenly across top of cookie. For linear pattern, pipe chocolate in parallel lines, about 1/4-inch apart, across top of cookie. Pull the point of a wooden pick diagonally across lines. Let stand at room temperature until chocolate is firm.
Frosting: Mix enough confectioners’ sugar and enough water to make frosting a spreading consistency, stirring well. Color as desired with a very small amount of past food coloring