Divide 1 dough recipe in half. To one half, mix in 10 drops
red food coloring. Wrap each half in clear plastic wrap; freeze
Divide each half into 8 pieces. On a lightly floured surface,
roll each piece into an 8-inch long rope, about 1/2 inch in
diameter. Flatten each on 4 sides to form a square rope. For
checkerboard design, place 4 ropes side by side on wax paper,
alternating colors. Top with 4 ropes, alternating colors. Repeat
2 more times, forming an 8 x 2 x 2-inch dough block with a checkerboard
Wrap in wax paper; freeze until firm (1 hour).
Cut dough crosswise into 1/4 inch thick slices. Using a 2-inch
heart shape cookie cutter, cut a heart shape from each slice.