The Duchess’ 50 Tea Recipes is a Manga/Manhwa/Manhua in english language, Isekai series, english chapters have been translated and you can read them here. You are reading chapters on www.mgeko.cc fastest updating comic site. The Summary is

Duchess Chloé Battenberg is a spineless softy at the mercy of society snobs, disparaging servants, and a cold husband. When an office worker (and recovering pushover) awakens as Chloé, she can’t believe it. But she’s DONE with this pity party, so let’s make it a tea party! Each cup is perfectly brewed to defeat prejudices and coffee-predilections—and served with a side of business savvy—but is it enough to stir her husband and bring Chloé the respect she deserves? Come spill the tea with Chloé!