In reply to <a href="https://everafterinthewoods.com/blueberry-crumb-cake-recipe/#comment-3127">jenn</a>. I looked at this cake recipe for the 1st time today. I went through it in my head fiest. Most people Release their cake from a tube pan, so the crumble would be on the bottom. I went ahead and put it in a 13 by 9, so it would stay upright.