Recipe by: Janet Baker Cream margarine; gradually add sugar, beating until light and fluffy. Add egg and extract, beating well. Combine flour, baking powder and salt; add to creamed mixture, beating just till blended. Divide dough in half; add a few drops of red food coloring to one half, and knead till color is evenly distributed. Leave the other half alone, or may color with green food coloring, doing the same as above. Cover both halves and refrigerate till both halves are firm. Divide each portion half into 2 halves again. On floured wax paper, roll one white portion into an 20 cm square. Do the same with a red portion. Invert white dough onto red dough, and roll firmly into a tight jelly roll form, removing paper as you do so. Do the same with the other 2 halves. Cover and chill. Cut dough into 1 cm slices and place on an ungreased cookie sheet. Bake at 180ºC or 10 minutes. NOTES : These cookies will not raise when baked, and will not brown. You must be very careful not to overcook, or the cookies will be very hard. ----