A neighbor and I are having a baking day at my house on Wednesday and we're trying our hand at the ever so trendy macaron for the first time. Making a lemon curd or chocolate version seems straightforward enough, but we wanted to make some strawberry ones for her 4 year old twins. It would seem we simply add a drop of red food coloring to the batter to make it pink, but how to make strawberry buttercream? Add preserves? Also - tips on making pistachio flavored ones? I'm going to make some black sesame ones with Yuzu buttercream for the grownups.