There are some ingredients you can skimp on, and I'm a firm believer that white chocolate is *not* one of them! You can use whatever kind of white chocolate that you prefer, just ensure that the chocolate is chopped quite finely or grated. The weight of large chunks of chocolate in this cake won't have the best result. I pulsed my white chocolate in a food processor so that the pieces were quite small. I used the white chocolate that you find at this link here.