gooey
adjective /ˈɡuːi/
  /ˈɡuːi/
(informal)- soft and sticky
- The heavy rain turned the track into a gooey mess.
 - gooey cakes
 
Extra Examples- He bought them a couple of lovely gooey Danish pastries.
 - The chocolate had gone all gooey in the heat.
 
Oxford Collocations DictionaryGooey is used with these nouns:- mess
 - substance