High Altitude Raspberry Buttercream Macarons

I live in Colorado, and love to bake. Sometimes the two coexist. Sometimes, my batters do funky things. My cakes droop or raise too much, they cook unevenly or get all kinds of cray cray. Enter the high altitude recipes. In regular baking, it usually involves a little more flour. When you are gluten free, or heck with macarons even GRAIN FREE- what does that mean? It means testing. Trying. Tweaking. Or, you know, just trusting me and checking out this foolproof recipe for high altitude macarons