If your peanut butter is sticking to the measuring cup, there are a few tricks you can try to make it slide out more easily: To ease peanut butter sticking to the measuring cup try any of the following methods. - Warm the cup: Run under hot water briefly for a few seconds to loosen the peanut butter and make it easier to slide out. - Use a spatula: Scrape out with a spatula after scooping using a spatula to easily release any stuck peanut butter in the cup. - Grease the cup: Apply baking spray or nonstick spray in the measuring cup and the peanut butter will slide out easily. - Chill the peanut butter: Refrigerate briefly to firm up the soft and sticky peanut butter. This can help prevent it from sticking to the measuring cup.