adjective, crum·bli·er, crum·bli·est.
Examples from the Web for crumbly
Add the butter and mix it on low speed until the mixture is crumbly.The Barefoot Contessa Knows How To Make Us Crumble|Ina Garten|November 30, 2014|DAILY BEAST
However, the crumbly texture helps make it a sinfully delicious topping for yogurt.
Gapper let him have 'em for two cents, because he'd had 'em a good while and the edges of 'em were some crumbly.The William Henry Letters|Abby Morton Diaz
Just by the smell of them your mind's eye pictured them coming from the oven—crisp brown circlets, crumbly, toothsome, delectable.Cheerful--By Request|Edna Ferber
At first they walked on concrete and then came to a crumbly edge of it and found themselves stepping on hard, sandy earth.The Einstein See-Saw|Miles John Breuer
Heres a broken one, and she reached over the screen and passed Dot the crumbly bit of candy.The Corner House Girls|Grace Brooks Hill
Pilkins conducted them to the crumbly red brick house of the Von der Ruyslings.Roads of Destiny|O. Henry