Shake Shack, La Colombe and Yards collaborate on a fundraiser coffee stout

Aside from redefining the quality possibilities for the mass-market burger, Shake Shack was among the first fast-food chains to feature local craft beers (not to mention good wine) behind a cash register.

Its latest offering, in collaboration with Philly stars La Colombe and Yards, is a coffee stout that's also a benefit, with $2 of every pint going to the City of Philadelphia Mural Arts Program.

This will be familiar to those who've tasted Yards' annual edition of Love Stout infused with dark Corsica beans, a style that's great with a meaty burger or one of the Shack's creamy vanilla frozen custards.

This stout, though, uses La Colombe's higher-end Haitian beans, which are more lightly roasted than Corsica.

That means on the initial sip, the coffee profile may be more subtle than expected.

But when steeped into the roastiness and chocolate malt notes of Yards' stout recipe, the lighter roast shows more staying power, shining through with an almost caramelly savor that lingers like a cup of Joe long after the beer is gone.

That's fortunate, because production of this brew (about 16 kegs) is not expected to last long after its Friday, Jan. 8 debut.

Coffee Stout collaboration from Yards Brewing, La Colombe, and Shake Shack, $5.75 a pint at all local Shake Shack locations and La Colombe Fishtown (1335 Frankford Ave.) while limited supply lasts.