Method:

• Heat oven to 375°F (190°C). In medium bowl, stir cookie mix, melted butter, egg and flour until soft dough forms. Divide dough into thirds. Tint one-third red and one-third green with food colours; leave one-third plain. Keep dough covered tightly until ready to use.
• On floured surface, roll each third of dough until 1/8- inch (3 mm) thick. For round cookies, cut with 1 1/2-inch (3.5 cm) cookie cutter; for square cookies, cut into 1 1/2-inch (3.5 cm) squares using sharp knife. (Dip cutter or knife in flour for easier cutting.)
• On ungreased baking sheet, place half the cookies 1-inch (2.5 cm) apart. Place 1 candy piece on centre of each cookie; top with another cookie. Gently press edges together to seal, using tines of fork. To decorate before baking, sprinkle cookies with coloured sprinkles, sugars or decors as desired.
• Bake 6 to 8 minutes or until edges are light brown. Cool 1 minute; remove from baking sheet to cooling rack. Cool completely, about 30 minutes. Decorate with gels as desired.