1cupAmerican Buttercream(enough to make 12-15 macaron cookies)
1 teaspoonlime juice
2teaspoonssweetened condensed milk
Add buttercream to a small mixing bowl. We make one large batch of buttercream and then divide it out into different flavors.
To the butterncream, add the lime juice and stir.
Add lime zest and sweetened condensed milk. Mix until all ingredients are well blended.
Pipe onto shells. Macarons need to mature in the refrigerator for up to 24 hours before serving (no less than twelve hours). After that initial maturing process, they can be placed in an air-tight container and frozen for up to one month.