Vegan blueberry cinnamon swirl layer cake

I don’t know what it is about me and holidays, but for some peculiar reason I can never get my seasonal goodies in on time. Take my pathetically late king cake for Mardi Gras. Or the strangely winter-ish peppermint mocha cake I posted a couple days ago. In fact, one of the first recipes I posted was for pumpkin spice latte muffins—delicious, but a bit incongruous considering that it was spring at the time.