cooking apple
US /ˈkʊkɪŋ ˌæpl/
UK /ˈkʊkɪŋ ˌæpl/

1.
a type of apple that is firm and tart, suitable for baking or cooking rather than eating raw
:
•
She used cooking apples to make a delicious apple pie.
•
Granny Smith is a popular variety of cooking apple.