Let's Do... For Perfect Puddings...and More! USDA Certified Gluten Free Vegan Kosher Pareve Non GMO Project Verified Certified by QAI Let's Do... Cornstarch is a wonderful thickening and stabilizing agent, perfect for making gravy, sauce, custard and so much more! Let's Do... Cornstarch has twice the thickening power of flour. When a recipe calls for flour, use half as much cornstarch to thicken your recipe. One tablespoon of cornstarch equals two tablespoons flour. Note: Cornstarch may clump when mixed directly into hot liquids. To avoid clumping, stir cornstarch into an equal amount of cold water to make a slurry, mix it into the liquid you want to thicken and heat as necessary. certification assures you of sustainable farming practices, which nourish soil, protect biodiversity and provide a premium to farmers. Consistent with our company policy, certification also prohibits the use of GMOs, artificial colors, preservatives and other unwelcomed ingredients.