Pumpkin pie in English is: Pumpkin pie.
Detailed explanation:
pumpkin
English [?p?mpk?n] American [?p?mpk?n, ?p?m-, ? p?-]
n. Pumpkin; pumpkin pulp, pumpkin sac;
[Example] Quarter the pumpkin and remove the seeds.
Cut the pumpkin into 4 parts and remove the seeds.
pie British [pa?] American [pa?]
n. Pie, pie; talkative person; [verb] magpie; lt; American slang gt; easy to get A satisfying thing, an easy job;
vt. To clutter; to mess up (type, layout);
[Example] The true regeneration of devastated Docklands seemed like pie in the sky .
Real reconstruction of the devastated Docklands looks unlikely.