For piped marshmallows, continue beating on high speed until the marshmallow firms and stiffens in texture (similar to a stiff meringue); the marshmallow will have lost some of its sheen and should break off as the beater is removed, but it should not be overly stringy, 10 to 16 minutes. For cut marshmallows, beat less, only until the marshmallow is fluffy and doubled in volume, 8 to 10 minutes total.
To pipe marshmallow chicks: Start by piping the body: Hold the piping bag over the colored sugar and begin piping the marshmallow out onto the sugar so it is about 1-inch in diameter and approximately ½-inch thick. Continue piping the body so it is about 2½ inches in length, then slowly release the tip from the marshmallow, pushing the marshmallow up to form a tail. To form the chest and head, pipe on top of the body, starting from the front of the body and piping over half of the back. Continue piping, but reversing direction, to form the head, slowly releasing the tip to form the beak. Spoon the colored sugar over the formed marshmallow to coat completely. Remove the marshmallow to a parchment-lined baking sheet.
To form cuttable marshmallows: Using a lightly greased offset spatula, immediately spread the mixture onto the buttered parchment-lined sheet, spreading the marshmallow so it covers the pan in an even layer. Set aside, uncovered, 2 to 4 hours to set. When the marshmallow is set, cut out shapes using lightly greased cutters. Gently press the marshmallows in colored sugar to evenly coat.
Form the eyes: Place the chocolate chips in a glass measuring cup or bowl and microwave in 10-second increments, stirring occasionally, until melted. Use a toothpick to dot the melted chocolate over the marshmallow candies to form eyes (and noses, for marshmallow bunnies).
Nutrition information per each of 36 candies:
Calories82Fat1 gSodium2 mg