dessertspoon
Concise Oxford English Dictionary © 2008 Oxford University Press:
dessertspoon/dɪˈzɜːtspuːn/
▶noun a spoon used for dessert, smaller than a tablespoon and larger than a teaspoon.
– derivatives
dessertspoonful noun (pl. dessertspoonfuls).
dessertspoonful noun (pl. dessertspoonfuls).
'dessertspoon' also found in these Oxford entries:

