Traditional Spooky Brownies

Roll betty crocker fruit roll-ups chewy fruit snack

container Betty crocker frosting, Rich & Creamy creamy white

box Betty crocker fudge brownie mix

Betty crocker pink and blue neon gel food color, green

Candy-coated chocolate baking bits, Miniature

Gummy worms candies

Marshmallows, large

Water

Betty Crocker™ black decorating gel (from 0.68 oz tube)