Proof that not every substitute for Greek yogurt has to be dairy-based comes in the form of pure pumpkin purée. Whether you make like Ina Garten and stock your pantry with a ready-made version or ...

Dear Lisa: When using Greek yogurt in recipes instead of oil or butter, what is the ratio for substituting? Is it an equal amount of yogurt? Thank you. -- Paula R. Dear Paula: Any plain yogurt can be ...