This cake was originally going to be a Valentine’s Day, but on and around February 14 we found ourselves so utterly desserted-out that we made it a week later as an 11th mensiversary cake, a rather less significant occasion. As to why I’m only posting it now…well, we’re already a year too late for the Portal craze.
Some of the weighted companion cube cakes people have made are too gorgeous to be believed, but of the actual recipes that have been posted, none really fit our requirements. We wanted a delicious and moist cake; sponge cake with fondant icing might look nice, but wouldn’t be very tasty. And seven pans of brownies seemed a mite big for the two of us. In the end, I improvised a recipe for a chocolate/white chocolate/strawberry Weighted Companion Cube cake. I was going to take pictures of the process, but it ended up being a mite messier and less photogenic than I had hoped, so written instructions will have to do.
We made a half recipe of chocolate cake and baked it in a loaf pan. Cutting the loaf in half made a two-layer cake that was an approximate cube. We put strawberry jam in between the two layers.
Our frosting was buttercream (butter, milk, and powdered sugar) with a lot of white chocolate chips melted into it. This succeeded in making the top very smooth, but the sides proved to be hard to spread. We used food coloring to darken the frosting from white to gray.
Instead of using frosting like other people did, we made the white parts out of powdered sugar, cutting out paper stencils and laying them over the cake to make the areas the right shape. We also used a stencil to make the strawberry jam heart. We should have used stencils to make the lines, but didn’t. Drawing lines with jam turns out to be harder than I expected.
A more enterprising decorator would have done all five sides, but it would be difficult to keep the jam from running. As it is, it stands as recognizable. It was also tasty–but very rich. We were only able to finish a quarter of it at one sitting.