Given the background description of some cooking related query, summarize the question into a title

Q: I'm going to make some sweet potato fries here shortly and I'm using a technique that I saw on television. I cut up my sweet potatoes into fries and I have been letting them soak in water. My intent is that some of the starch will dissolve into the water and help the fries crisp up better. Has anyone else tried this?

A: Soaking starches in water for better frying
****
Q: I really enjoy cooking eggs for breakfast, and sometimes I'm feeling fancy enough to add veggies into my scramble. However, I'm never sure how to prepare the veggies to put into the scramble. If I don't cook them, usually they are too crunchy or tough (and sometimes make the scramble watery), and don't taste good with the eggs. If I try to cook them before adding them, they usually come out too dry/overdone. I figure this might depend on which veggies I'm cooking so here are my common favorites: tomatoes, bell peppers, mushrooms, onions (suggestions welcome!)To make my question more specific (and hopefully more answerable): how can I prepare the veggies so that they are not crunchy, but not over-cooked?

A: Proper preparation of veggies for an egg scramble
****
Q: Many commercial cake mixes use vegetable oil, but I have seen some (usually 10% or less of what the store carries) that are "Butter Recipe".These use butter instead of vegetable oil. What is the difference in these? And is the reason you do not find many in stores is because it is not popular, or costs more, or something else?

A:
What is the difference between regular (vege. oil) and butter recipe cake mixes?
****