1.   And you can top it with buttered bread crumbs or crumbled Ritz crackers.

2.   Crumble the crackers in your fist and scatter over the top of the casserole.

3.   She crumbled crackers into smithereens so she could blow them into your hair.

4.   Use a rolling pin or your hands to press and crumble the crackers into coarse crumbs.