Frog Cupcakes

Preheat the oven to 350 degrees F (175 degrees C). Line two 12-cup muffin tins with paper liners.

Mix cake mix water, oil, and egg whites in a large bowl with an electric mixer on low speed until moistened, then mix on medium speed for 2 minutes. Pour batter into the prepared muffin cups, filling each 1/2 full.

Bake in the preheated oven until tops spring back when lightly pressed, 19 to 23 minutes. Cool in the tins for 5 minutes, then transfer to a wire rack and let cool completely, about 20 minutes more.

While the cupcakes are cooling, stir 2/3 of the frosting with green food coloring in a small bowl until well combined. Place remaining frosting in another small bowl and set aside. Cut each marshmallow in fourths widthwise to make four thin circles. Place green sugar in a shallow bowl. Set out a very small bowl of water.

Frost cooled cupcakes with green frosting and sprinkle with some green sugar.

Wet half of each marshmallow circle with water, then dip the wet part into green sugar to coat. Place two dipped marshmallows onto each cupcake for the frog's eyes; the green sugar should be facing up for the eyelids. Use a tiny bit of white frosting to glue a chocolate chip onto the center of each marshmallow for the pupils.

Stir red food coloring into remaining white icing. Transfer to a plastic bag. Snip off one corner of the bag and pipe pink icing onto cupcakes to draw mouths and nostrils as desired.