We returned from a trip to Flat Head Lake and Glacier National Park in Montana last week but I’m having a difficult time getting through the photos to post. So, let’s talk about typical summer grilled burgers but this time with an impressive Fake Shack Sauce from Serious Eats. It’s based on the sauce used on Shake Shack burgers. I’ve only eaten at Shake Shack once over two years ago so I can’t judge the accuracy. But I have tried out various “special sauces” on my grilled burgers and this is my favorite so far – the only one that bears making again.