In a large bowl, whisk together the rice milk and starch until the starch is dissolved, then mix in the remaining ingredients.
Pour into an oven safe pan and bake at 375 °F for 45 minutes or until just the center jiggles. Cool before serving.
Corn Substitutions: Corn is a common ingredient in products. Starch, modified food starch, dextrin and maltodextrin can be from corn. Consult with your physician to find out which corn derivatives you need to avoid. Many corn-free options are available in the US. Find out more about corn substitutions.