Tara Morimoto 
The Alchemy of Salt and Ash [EPUB ebook] 
A Nikkei Grimoire

The air in Kayako Freeman’s San Francisco apartment still whispers of burnt sugar, a phantom taste of grief for her grandmother, Obachan.  Sunlight catches the dust motes dancing above Obachan’s most prized possession: a worn, leather-bound cookbook, bequeathed with a cryptic wink and a whispered promise, ‘The spices whisper secrets, Kayako. Listen closely.’  Nestled amongst familiar Nikkei recipes, Kayako discovers a hidden world of alchemical symbols, intricate diagrams, and incantations—a grimoire of culinary magic.
Kayako, a classically trained chef, finds herself drawn to a recipe for Nikkei ceviche, the marinade shimmering amethyst thanks to a mysterious “lunar dust.”  The first bite isn’t just a taste explosion; it’s a portal to Obachan’s past, a Lima kitchen vibrant with the scent of mangoes and cilantro.  Suddenly, Kayako isn’t just tasting ceviche; she’s experiencing Obachan’s fierce determination firsthand.
Each recipe in the grimoire unlocks a new memory, revealing Obachan’s hidden life as a Keeper—a protector of culinary magic within a secret society of Japanese immigrants safeguarding their traditions against rising anti-Asian sentiment.  A hearty Incan stew seasoned with ‘mountain whisper’ reveals their clandestine network. A delicate yuzu cheesecake infused with ‘sunstone’ unveils a forbidden love affair—with Kayako’s own grandfather, a man erased by family secrets.
The grimoire’s power seeps into Kayako’s reality. Flavors become conduits to magic, subtly shaping her world.  A fiery lomo saltado seasoned with ‘reconciliation root’ sparks an unexpected reunion with her estranged mother, Eleanor, who harbors her own complicated history with the grimoire. But magic has a price. Misplaced ingredients, mispronounced incantations—the consequences ripple through Kayako’s life, driving away fellow chef, Emilio, and intoxicating her ambitious friend, Chloe, who becomes dangerously entangled in the book’s power.
Kayako discovers the grimoire isn’t just a cookbook; it’s a key to a hidden world intertwining Andean shamanism and Japanese onmyōdō.  It’s also a shield, protecting the ‘Heart of Flavor, ‘ a radiant crystal said to be the source of all taste and culinary inspiration.