Dairy maybe?
Something sweet that starts with D is:datesdoughnutsdouble fudge browniesdevil's food cake
A dog
duck
Denmark
deli meat, defroster
Something found in the restroom that starts with D is a dryer.
Something sweet that starts with D is:datesdoughnutsdouble fudge browniesdevil's food cake
Detergent
diary
A dog
deer
· diminutive
dynasty
Dorsal (fin).
Drunk
Dishwasher Dish Detergent
Desk