We head uphill, across crumbly volcanic rock through a narrowing defile that rises to the top of a ridge.

BBC: Iceland on horseback

Here, the crust is lighter, a brilliantly buttery piecrust with a golden caramelised outer layer giving in to a flaky, crumbly interior.

BBC: The deep rooted history of Chicago��s deep-dish pizza

Cotija, a fresh crumbly cheese found in Mexican grocery stores, also gets stirred in (ricotta salata makes a fine substitute).

WSJ: Josh Habiger and Erik Anderson's Elote Corn Salad With Piment��n-Mayo | Slow Food Fast

The biscuit is light, crumbly and still warm from the oven.

BBC: The spirit of the Italian Lakes

The sere, crumbly atmosphere of a dig, as I envisioned it, seemed a welcome relief from the maelstrom I now perceived to be teeming within the human body.

NEWYORKER: Archeology

Graphite is generally soft and crumbly, so soon after, Italian craftsmen came up with the idea of hollowing out a stick of juniper wood and filling it with graphite.

FORBES: No. 4 The Pencil

Friable, briny and reminiscent of mozzarella, the cheese is consumed no later than six to 10 days after production and is a perfect match with roggebrea, a stiff but crumbly rye bread.

WSJ: Four Days Through Friesland

However you order it, you get crumbly beef on a bun that lives up to its name, and it is a hands-on experience that require napkins and should not be attempted while driving.

FORBES: Loose Meat Sandwich, Iowa

For a true West Virginian, nothing compares to sitting down to a steaming bowl of brown beans served up with a crumbly wedge of homemade cornbread (or grit bread, as we like to call it).

NPR: Beans and Cornbread: Feeding Souls a Mile Deep

Males and females even doing it during the mating period, and they end up with these little facial injuries and that seems to be the way that the tumor cells are transferred from crumbly friable tumors on the face of one devil into the facial wounds on another devil.

NPR: Startling New Evidence Cancer Is Contagious