Lemon Ricotta Cupcakes with Blackberry Icing

I love fall, but I've been a little bummed that summer seemed to come and go so quickly this year -- it rained almost every day in July and we really only had about two weeks of really nice weather before it started to get cold outside. I decided that even though they aren't exactly season-appropriate, I would bake some lemon and blackberry cupcakes to remind myself of the warmer days. I may have spent the past few weeks bundled up in a winter coat and eating apples and squash, but one bite of these cupcakes will transported me right back to summer. [....]