green French Macarons filled with butter nut brittle buttercream

These macarons were colored using powdered food coloring from LorAnn Oils.
I pulverized a few pieces of butter nut brittle in a small coffee grinder and stirred the powder into buttercream.  I was very pleased with the flavor.
The pink French macaron is from here.  I filled the pink macarons with crushed peppermint candy canes stirred into buttercream.
Continuing to use this recipe for the macaron shells.
macaron #10