How to make a constellation cake

Today is special, don't forget to make a wish! Sagittarius exclusive (11.23-12.5438+0) constellation cake: blue blueberry. The focus is on blue-purple graffiti cream. Candlesticks are very important and must be decorated if possible. Note: 1. Preheat the oven in advance, remember to cool the baked cake upside down, and then slice it; Stir the cream.