Question: do if cream cheese frosting runny?
Answer: Mix 1 tablespoon (25 grams) of cornstarch into the frosting. If it is still too runny, add a little more. Continue to add cornstarch until you are happy with the texture. Avoid adding more than 1/2 cup (62.5 grams) of cornstarch per 8 oz (226 grams) of cream cheese.