Included in a patisserie recipe I saw "dry butter" as an ingredient. I have no idea what this means (ChatGPT listed it as clarified butter that had ben allowed to resolidify but who trusts that AI LLM without corroboration?)
Not sure if this helps but I just read this on a post from gourmetfoodworld.com
"Beurre de Tourage Butter, also known as “dry butter”, is dry, unsalted, presented in thin sheets, and designed for folding. It's made from imported butter from Brittany, with 82% butterfat. Designed to make laminated dough preparations, it's an exceptional butter for puff pastry, croissants, and Danishes."
And you have a search engine for ALL your recipes!