Brain Game: An Able Baker
By BY

By changing one letter at a time to form different English words, and leaving all other letters in their original positions, convert BREAD into CRUST in seven (or fewer) steps. Good luck!
B R E A D _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ C R U S T
Here is a six-step SOLUTION.
A SIX-STEP SOLUTION:
BREAD > BREED > CREED > CREEL > CRUEL > CRUET > CRUST
Did you come up with a different series of words? Please share your solution in the comments. Thanks!