[header] How to make an edible dna model [title] Prep your workspace. [step] Clean and sanitize a table that has enough surface space for you to construct the helix; you do want to be able to eat the dna afterward. Collect the necessary supplies including tooth picks, a bag of candies with 4 different colors, and, if possible, licorice sticks. 
[substeps] There are limitless number of food items that can be used to represent the dna, it just need to be color coded and soft enough to put a toothpick through. Colored marshmallows are a popular option, as are gummies.