Before GMO became a recognizable name on dispensary menus and in solventless extraction circles, it was an overlooked seed selection known mainly through forums.
Before the Garlic Funk: The Original Chem Cookies Project
GMO began as Chem Cookies, a breeding project from Mamiko Seeds in Spain.
The original cross was: Chem D × GSC Forum Cut
The combination brought together two recognizable genetic lines.
Despite the potential of the cross, the original account describes Chem Cookies as a sleeper in early-2010s seed releases.
It was primarily known among growers who searched through online forums and less-publicized seed offerings.
At that point, the eventual GMO cut had not yet developed its broader reputation.
2013: Skunkmasterflex Finds Phenotype Number Three
In 2013, Skunkmasterflex, identified in the original caption as Skunkmasterflex1, grew Mamiko's Chem Cookies seeds and documented the selection process through ICMag and THCfarmer.
The original account distinguishes between three phenotypes. Phenotypes #1 and #2 were solid plants, but phenotype #3 stood apart.
Its characteristics included: loud garlic fuel, greasy resin and a pronounced Chem bite.
According to the caption, the third phenotype immediately caught his attention.
He cloned it rather than allowing the plant to disappear after the selection.
The original account emphasizes that he documented the process throughout the hunt, creating a record within the online growing community.
That third phenotype became the foundation of the famous GMO cut.
The Name: A Headline Becomes Cannabis History
The original name came from an unexpected source.
According to the original account, Skunkmasterflex saw a headline about Girl Scout Cookies using genetically modified ingredients.
He joked: "this 1's the real GMO."
The name stuck.
The later interpretation of GMO as Garlic Mushroom Onion developed as smokers tried to explain the strain's unusual savory aroma.
The caption makes an important distinction between the original naming joke and the later garlic, mushroom and onion explanation.
The genetics did not originate from an intentional breeding project named Garlic Mushroom Onion. The name came first through the joke, while the sensory description developed afterward.
Divine Genetics and the Chem Cookies Confusion
The original account also identifies another Chem Cookies release from Divine Genetics.
Its parent combination was: Chem 4 × GSC
The caption acknowledges that Divine Genetics produced good plants.
However, it distinguishes that release from the particular phenotype selected by Skunkmasterflex.
According to the original account, none of the Divine Genetics plants matched the Mamiko Seeds and Skunkmasterflex selection.
Side-by-side reports reportedly reinforced the distinction.
The account identifies the famous GMO as originating from Mamiko's Chem D line, not the separate Chem 4 cross.
This distinction is important because both projects carried the Chem Cookies name while representing different genetics.
The Clone Moves Through Trusted Circles
After its selection, the GMO cut spread quietly.
The original account says it did not initially arrive through a major seed release or an aggressive brand campaign.
Instead, it moved through trusted relationships and private growing circles.
The caption identifies three regions where the clone circulated: Northern California, Colorado and Michigan.
Growers reportedly referred to it simply as "that garlic cut."
The limited circulation helped maintain its reputation within the community before the wider market discovered it.
Extractors Recognize the Plant First
According to the original account, extractors recognized GMO's potential before dispensaries began featuring it prominently.
The plant developed a reputation as a top-tier wash variety.
Its resin production and terpene output made it particularly interesting to people working with solventless extraction.
This helped create an identity for GMO that extended beyond its flower appearance.
The variety became associated with both strong cannabis flower and the production of highly desirable extracts.
2017: GMO Enters the Competition Scene
The year 2017 marked a major turning point.
According to the original account, GMO-led entries received awards at the High Times Midwest and Southern California competitions.
These results helped establish that the previously discussed forum selection could compete at a wider level.
Danny Danko later named GMO one of the year's standout strains.
That recognition helped move the cultivar from online growing-community discussions into broader cannabis culture.
A Solventless Benchmark
As the cut became more widely recognized, GMO developed a strong reputation among rosin makers.
The original account identifies three characteristics behind its appeal: heavy terpene output, stable profiles and unmistakable gas.
Rosin makers showcased the variety, while breeders began pursuing its genetics.
The caption also notes that some dispensary menus began using the name Garlic Cookies because the GMO name reportedly concerned certain customers.
The alternate name allowed the product to retain its identity while avoiding the potentially confusing GMO terminology.
Ripper Seeds and the Global Family Tree
The original account identifies Ripper Seeds in Spain as helping preserve the clone.
Mamiko Seeds, in that account, also backcrossed the genetics into fresh Chem Cookies stock.
These efforts helped maintain the original lineage while breeders began developing additional combinations.
The caption identifies several descendants and related breeding projects: Fatso, Donny Burger and OMG.
The original account describes these developments as the beginning of a much larger GMO family tree.
A single phenotype selection had become a genetic foundation that other breeders could incorporate into their own projects.
Legacy: Mamiko Bred It, Skunkmasterflex Found It, Culture Lifted It
The GMO story connects a Spanish breeding project with an important phenotype discovery in 2013.
Mamiko Seeds created the Chem Cookies foundation through Chem D × GSC Forum Cut.
Skunkmasterflex selected phenotype #3, recognized its distinctive garlic-fuel characteristics and preserved it through cloning.
Online communities helped document its development, while extractors and breeders helped elevate its reputation.
By 2017, competition recognition had helped move GMO beyond its original forum audience.
Its influence continued through solventless extraction and later breeding projects.
The original account summarizes the distinction clearly: Mamiko Seeds bred it, Skunkmasterflex found it, and the culture lifted it.
YouTube Video
Sources
nuggnotes. "Garlic Born: The Chem Cookies Phenom That Became GMO." Instagram, 7 Dec. 2025, https://www.instagram.com/p/DR-x2d9kh7x/.
The original Instagram post behind this article.
"GMO Cookies (Mamiko Seeds) :: Lineage & Hybrids." SeedFinder, https://seedfinder.eu/en/strain-info/gmo-cookies/mamiko-seeds/genealogy.
Annotation: SeedFinder's database catalogues GMO Cookies under Mamiko Seeds, records the strain under the names GMO, Garlic Cookies, and Chem Cookies (Mamiko Seeds), and lists nine direct descendants; verifies the Mamiko breeder credit and the Chem Cookies naming (the genealogy page itself does not print the Chem D × Forum parentage).
Downs, David, et al. "April 2024 Leafly HighLight: GMO Cookies Strain." Leafly, 2 Apr. 2024, https://www.leafly.ca/news/strains-products/gmo-cookies-strain-april-2024-highlight.
Annotation: Verifies the spine of the story — GMO Cookies (also called Chem Cookies) is Chem D crossed with GSC, from seeds released by Mamiko Seeds of Spain and pheno-hunted and selected by Skunkmasterflex; the GMO name references news of a popular cookie brand using GMO ingredients; the cut won Best Indica at the Midwest Cannabis Cup and a High Times Top 10 Strains of 2017 placement; Donny Burger (GMO × Han-Solo Burger) is a named descendant.
Danko, Danny, and T.H. Caeczar. "Top 10 Strains of 2017." High Times, Dec. 2017. Read via AnyFlip, https://anyflip.com/ataj/iegx/basic/51-100.
Annotation: The primary source for the selection story and the Danko nod — the GMO Cookies entry credits Mamiko Seeds and records that @SkunkMasterFlex1 found the phenotype, describes a garlic-forward aroma, and praises its yields and hash returns.
"GMO Cookies." CannaConnection, https://www.cannaconnection.com/strains/gmo-cookies.
Annotation: Corroborates Mamiko Seeds as the creator and Chemdawg × Girl Scout Cookies as the parentage, and records Chem Cookies and Garlic Cookies as alternate names.
"OMG Marijuana Strain." Kind Green Buds, https://kindgreenbuds.com/marijuana-strains/omg/.
Annotation: Verifies Ripper Seeds' OMG as GMO (Chem Cookies) × Kush Mints, confirming OMG as a GMO descendant and Ripper Seeds' breeding work with the GMO selection.
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