The Collaborative International Dictionary
Spoonfuls
Spoonful \Spoon"ful\ (-f[usd]l), n.; pl. Spoonfuls (-f[usd]lz).
The quantity which a spoon contains, or is able to contain; as, a teaspoonful; a tablespoonful.
Hence, a small quantity.
--Arbuthnot.
Wiktionary
spoonfuls
n. (plural of spoonful English)