Halloween. About 6 tablespoons warm water Paste food coloring 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; mix well. Combine flour, soda, and salt; add to creamed mixture, beating just until blended. Shape dough into two 30 cm rolls; wrap in wax paper. Chill several hours. Unwrap rolls, and cut into 1 cm slices; place on ungreased cookie sheets. Bake at 180ºC or 10 to dozen minutes. Cool on cookie sheets 5 minutes. Remove to wire racks to cool completely. Spread frosting over cookies to within 0 cm 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 cm apart, across top of cookie. Pull the point of a wooden pick diagonally across lines. Let stand at room temperature until chocolate make frosting a spreading consistency, stirring well. Color as desired with a very small amount of paste frozen up to 3 months. Slice dough while frozen, and bake as directed.