Fermented.
Fresh.
Alive.
Mamma Mia!
The Sauce Ingredients The Science Our Story Tasting
Mamma Mia!
Italian Fermented Hot Sauce

Mamma
Mia!

That's hot.

The sauce the market forgot to make. Pesto's herby richness. Green serrano's fresh heat. Lemon's bright tang. All fermented into something you've never tasted before.

🌶 Medium Heat 🌿 Fresh Basil 🍋 Bright & Tangy 🧪 Fermented 🇮🇹 Italian Soul
Mamma Mia! coastal scene
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Mamma Mia!
Spicy & Fresh
Pesto Meets Fire
Fermented Serrano
Pesto Blend
Mamma Mia!
Mamma Mia!
Spicy & Fresh
Pesto Meets Fire
Fermented Serrano
Pesto Blend
Mamma Mia!
Mamma
The Sauce

Pesto meets
fire.

You've had hot sauce. You've had pesto. But you've never had the two together — fermented, layered, alive. Mamma Mia! was born from a gap in the market that three ASIJ seniors couldn't stop thinking about.

Bright and garlicky up front, with a creamy basil-parmesan body and a clean serrano heat that lingers without burning. Finish is herby, lemony, almost Mediterranean.

First hit
Bright garlic & lemon
Body
Herby pesto richness
Heat
Medium
Finish
Parmesan & basil
Fresh basil
What's Inside

Every ingredient,
a reason.

Click any ingredient to see its role in the sauce

🌶️
Green serrano
45g · de-seeded
Fermentation
🧅
Onion
1 whole · roughly chopped
Fermentation
🫑
Green bell pepper
1 whole · deseeded
Fermentation
🍋
Lemon
1 whole · cut
Fermentation
🧄
Garlic
2 cloves · whole
Fermentation
🌿
Fresh basil & spinach
2 cups · blended
Post-Fermentation
🎃
Pumpkin seeds
¼ cup · ground
Post-Fermentation
🧀
Parmesan
¼ cup · finely grated
Post-Fermentation
🫒
Olive oil
½ cup
Post-Fermentation
🍯
Honey
¼ cup · if needed
Post-Fermentation
🌶️
Green Serrano
THE HEAT ENGINE
The backbone of Mamma Mia!. Half the seeds are removed to dial the heat to a medium level — present and exciting, but never overpowering. Serranos bring a crisp, fresh heat that's distinctly different from jalapeños or cayenne. During fermentation, the lactic acid bacteria transform the pepper's capsaicin compounds, mellowing the raw bite while building depth.
Half de-seeded · Fermentation stage
Food Science

Lacto-fermentation:
the living process.

Mamma Mia! isn't just mixed — it's fermented. We used lacto-fermentation, a process where naturally occurring Lactobacillus bacteria convert sugars into lactic acid, lowering the pH and preserving the ingredients while building complex flavor compounds impossible to achieve any other way.

We tracked our fermentation over 29 days using a calibrated pH sensor (Sensor #0610C0V3). As the pH rose from 2.7 to a peak of 3.52 at Day 23, Lactobacillus bacteria broke down cell walls of the peppers and aromatics, releasing volatile flavor molecules and building complex, tangy depth. By Day 29, pH settled at 3.38 — a slight dip from peak, consistent with continued low-level fermentation activity.

The low pH environment also acts as a natural preservative — inhibiting pathogenic bacteria while allowing the beneficial Lactobacillus strains to thrive and do their work.

29
Days Fermented
3.38
Final pH
5°C
Storage Temp
Fermentation pH over time Sensor #0610C0V3
Day 0
pH 2.7
Day 14
pH 3.47
Day 23
pH 3.52
Day 29
pH 3.38
pH rose steadily from 2.7 at Day 0 to a peak of 3.52 at Day 23, reflecting active Lactobacillus fermentation. By Day 29, pH dipped slightly to 3.38 — consistent with continued low-level activity past peak. Notable at Day 29: small white spots (harmless surface yeast) appeared on some peppers and were removed; garlic turned greenish-blue, a completely normal reaction during lacto-fermentation.
Day 0 fermentation
Day 0 — Start
Day 14 fermentation
Day 14 — Active
Goes on everything

One sauce. Endless tables.

Mamma Mia! on nachos
On a burgerBold, saucy, unforgettable
Mamma Mia! on eggs
On eggsBreakfast just got Italian
Mamma Mia! on pasta
On pastaMediterranean in every pour
Mamma Mia! on a hotdog
On steakMediterranean meets the grill
Mamma Mia! on wings
On salmonHerb heat meets the sea
Mamma Mia! on a sandwich
On a sandwichThe Italian upgrade you needed

scroll to explore →

Our Story

The gap no one
filled.

It started in a food science class at the American School in Japan. Three seniors — Kate, Roan, and Upe — kept coming back to the same question: why doesn't anyone make a hot sauce that tastes like the Mediterranean?

"We all loved pesto. We all loved heat. But every hot sauce on the shelf was either vinegar-forward or purely spicy. Nothing had that fresh, herby, garlicky soul."

The market gap was obvious. Traditional hot sauces dominate with cayenne and vinegar. Pesto sits in its own corner, never considered a "sauce for everything." Mamma Mia! bridges the two — using fermentation to fuse flavors that were always meant to exist together.

Born in a high school lab in Tokyo. Inspired by the Italian coast. Made for anyone who's ever thought hot sauce could be more interesting.

Mamma Mia! story
ASIJ
Food Science
Class '26
Coming Soon

Be the first to get a jar.

Mamma Mia! is in its final batches. Drop your email and you'll be first to know when it ships — and first in line for early pricing.

No spam. Just Mamma Mia!.

The Team

Meet the founders.

Six ASIJ seniors. One shared obsession with flavor. Zero compromise.

I
Kate
Kate
Head of Flavor · Chief Taste Tester
The palate behind Mamma Mia!. Kate drove every flavor decision — from the precise serrano-to-basil ratio to the finishing touches of honey and parmesan. If it didn't taste right, it didn't make it in.
II
Roan
Roan
Head of Science · Fermentation Lead
The scientist of the operation. Roan managed the 29-day fermentation process, tracked pH levels daily, and made sure the Lactobacillus cultures were doing exactly what they were supposed to.
III
Upe
Upe
Head of Concept
The idea behind the idea. Upe identified the gap no one else had filled — a fermented pesto hot sauce — and shaped the creative vision that gave Mamma Mia! its identity from the very first batch.
IV
Shou
Shou
Marketing Team
The voice of the brand. Shou built the website, designed the flyers, and drove every marketing decision that put Mamma Mia! in front of the right audience — from social strategy to the tasting event experience.
V
Tom
Tom
Marketing Team
The face behind the feed. Tom ran Mamma Mia!'s Instagram and TikTok presence — creating content, growing the audience, and making sure the sauce had a personality online that matched the one in the jar.
VI
Teddy
Teddy
Marketing Team
The creative eye of the team. Teddy handled content creation — shooting photos, writing captions, and making sure every post looked and felt like Mamma Mia!.
Upcoming Event

Taste it
yourself.

We're bringing Mamma Mia! to the ASIJ courtyard. Come try the sauce that started with a question and ended with something genuinely new.

Event starts in
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📅
Date
April 29, 2026
🕚
Time
11:00 – 11:40 AM
📍
Location
ASIJ courtyard
🎟️
Admission
Free — all welcome
Completely free · No signup required · Just show up
Live tasting — April 29

Tell us what
you think.

Honest feedback only. It helps us make Mamma Mia! better.