Palmier

...Add the flour and mix lightly, then transfer to a work surface, knead and leave to rest.
[Types of pie]
Pastries made with folded puff pastry include mille-feuille, which is made by stacking about three layers of baked dough, sandwiching cream or jam between them, and decorating the top with powdered sugar, chausson, which is made by cutting an oval shape of dough, placing fruit or jam in between, folding it in half, and baking it, palmier, which is made by rolling the dough into a heart shape and slicing it thinly from the small end and baking it, leaf pie, and cornet, which is made by rolling the dough into a cone shape, baking it, and filling it with cream. A typical example of a pastry made with folded puff pastry is apple pie, which is filled with candied apples flavored with cinnamon.

*Some of the terminology explanations that mention "palmier" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…ここに小麦粉を加えて軽く合わせ，台の上に移して練り合わせ，ねかせておく。
［パイの種類］
　折込みパイ生地の菓子には，焼いた生地を3層ほど重ね，その間にクリームやジャムをはさみ，上に粉砂糖などで飾ったミルフイユmille‐feuilleや，楕円形に切った生地に果物やジャムをのせて半分に折って焼いたショーソンchausson，断面がハート形になるように生地を巻き込んで小口から薄切りにして焼いたパルミエpalmier，木の葉形にしたリーフパイ，生地を円錐状の型に巻いて焼き，クリームを詰めるコルネcornet à la crèmeなどがある。また即席の折込みパイ生地を使ったものとしては，シナモンで香りづけしたリンゴの砂糖煮を詰めたアップルパイが代表的である。…

※「palmier」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報