I received this from Mitch Friedman. I learned it as a child.

A mama mole, a papa mole, and a baby mole all live in a little mole hole. One day the papa mole sticks his head out of the hole, sniffs the air and says, “Yum! It smells like maple syrup to me!”

The mama mole sticks her head out of the hole, sniffs the air and says, “Yum! It smells like honey to me!”

The baby mole tries to stick his head out of the hole to sniff the air, but the bigger moles are in the way, so he says, “Gee, all I can smell is…. molasses!