day 90 : I baked a cake this evening for an office birthday party that we’re having tomorrow. The cake itself is pretty straightforward if you can follow a recipe, but the buttercream I make is a totally different story. It involves whipping egg whites, boiling sugar and lots of other wizardry. Made correctly it tastes like fluffy beautiful goodness. But one degree off on the temperature and it turns to a greasy, curdled mess. Thank goodness for candy thermometers.