i havn't actually made this yet- it might not even work- but someone should try their hand at it, if i don't get to it first! i'm sure some modifications are in order. i wanted a raw vegan frosting that was nut free and white, and this poses quite a challenge, remarkably (i guess it only serves as more evidence that anything natural and healthy dosn't resemble in any way the overly-refinned sugars and flours used in most standard american cooking and confectionery). if it works, this frosting will also be diabetic friendly!
1/3 cup Sarah's Sweet Jicama Milk ( http://www.goneraw.com/recipe/sarahs-sweet-jicama-milk  )
1 tbsp arrowroot
celery powder, to taste
1/3 cup light agave nectar
1 1/2 tsp vanilla extract
1/2 cup plus 2 tbsp pulverized dehydrated jicama
1/3 cup mashed banana
add an additional 1 tsp of the following extracts:
1. whisk together jicama milk, arrowroot, and salt until dissolved.
2.add agave nectar and whisk until combined, then add mashed banana and vanilla extract and whisk again. add pulverized jicama and beat on medium speed with an electric mixer for at least 4 to 5 minutes, until creamy and smooth.
3. cover and chill in the refrigerator for at least 40 minutes until mixture is firm, or for best results, allow to chill over night.