GMO Cookies, also called GMO or Garlic Cookies, is the Chem D x GSC hybrid that made savoury funk a category. Spanish breeder Mamiko Seeds made the cross; a grower known as Skunkmasterflex pheno-hunted the packs, picked the standout, and named it. The resin it throws made it a favourite of extract makers.
The initials do not mean the plant was engineered. Worth saying once, because it is the first thing everybody asks.
Where It Comes From
The origin runs through cannabis forums, not a marketing department. In the early 2010s Mamiko Seeds released Chem Cookies, Chemdawg D crossed with the GSC Forum cut. Skunkmasterflex germinated the packs, flagged what he called killer phenotype #3, and documented the hunt as he went. He named the keeper GMO.
That is a genuinely unusual origin for a plant this influential. Most modern staples come out of a seed house with a launch behind them. GMO came out of somebody buying packs, running them, and posting what he found.
The community settled the credit question by consensus in the same forums where the hunt was posted. Mamiko made the cross, Skunkmasterflex made the selection and the name, and that split has held up ever since.
Dispensaries, understandably nervous about a shelf tag reading GMO, largely relabelled it Garlic Cookies. Both names point at the same plant, and you will still see them used interchangeably on menus a decade later.
The Cross
The documented genetics are Chem D crossed with the GSC Forum cut. Chem D supplies the fuel, the chemical bite, and the depth. GSC adds the sweetness, the dough, and the dense modern structure, and its own ancestry reaches back through OG Kush and Durban Poison.
The phenotype Skunkmasterflex selected pushes the savoury side so far forward that garlic and onion became the default vocabulary for the whole plant — which is exactly how Garlic Cookies became a workable second name for it.
Mamiko Seeds still lists GMO Cookies as feminized seed with roughly a 61-day flower. Credit splits cleanly: Mamiko for the cross, Skunkmasterflex for the selection and the name.
Grower photos typically show light-green spade-shaped buds, orange hairs, and dense white trichome coverage. That resin output is a large part of why the cut became an extract staple rather than only a flower name.
What It Left Behind
GMO Cookies took Best Indica at the Midwest Cannabis Cup in 2017.
The clearer measure of its standing is breeding influence. GMO seeded a whole family — Donny Burger, Han-Solo Burger, Garlic Juice, and Garlicane among them — and breeders keep going back to it as a parent rather than treating it as a finished product.
It also stayed in wide rotation for a decade after a forum hunt produced it. Very few plants selected that way are still setting direction for other breeders this long afterwards.
The High Rise Take
Mamiko made it, Skunkmasterflex named it, and the savoury-funk lane it opened is still one of the most copied ideas in modern breeding. Consumers commonly describe it as a heavy, evening-leaning cultivar, though dose, tolerance, format, and setting all move that. To hear it crossed into sweetness, try Garlicane.