Can anyone offer advice on how to roll dough into perfect balls? I know it seems like a petty question as it's obvious, a no-brainer; but every time I try to roll my dough into balls, they leave much to be desired. Either the balls have creases, lines, dents, and so when they get baked, they show these creases. I'd really like to learn how to make perfect balls. Anyone? I find it hard especially when I have to make 3 small balls in a muffin cup so they come out like a bubble.