Prinsesstårta (Swedish Princess Cake)

They say this spring green dome from the 1930’s made with layers of sponge cake, raspberry jam, custard, and whipped cream is DIFFICULT. Everyone says so, in fact, except for the Swedes. Curious, right? I finally figured out why: Swedish folk have great recipes and three quarters of a century’s worth of tips and tricks up their sleeves. Like, ahem, pre-rolled marzipan and boxed custard. I even saw one Swedish video which used prepacked cake, already sliced in thirds. “We all start out as children.” This Swedish Proverb hints at what I learned, first hand, when making this cake: we must crawl before we can walk, we must be children before we are grown. Experience comes one step at a time. Considering I made each part of this cake 3 times, and messed it up terribly along the way… I thought you might benefit from my errors. So, do forgive me, but before we get into the recipe, I must tell you about the top five mistakes I made when making this cake, so you don’t do …