Scrub and pierce sweet potato. Wrap in foil and bake at 450° for 60-75 minutes or until soft.
Let cool and peel (tip, put in the fridge overnight. Peeling is a breeze when cold)
Cut sweet potato into chunks
Boil chick peas with 1 tsp of salt for 20 minutes
Put chick peas in a strainer and run under cold water. Peel the chick peas and put in a separate bowl. Discard the peels
Put garlic chick peas in food processor and pulse until ground. Add tahini and pulse some more to incorporate. Add the sweet potato, sriracha, olive oil, lemon juice and blend. Add cold water tablespoon by tablespoon as needed.
The mixture will be very soft. Let refrigerate for at least one hour to firm it up before serving