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Zucchini Caviar with Mayonnaise and Tomato Paste for Winter
Instructions
I prepare ingredients for zucchini caviar with mayonnaise and tomato paste for winter.
ANY zucchini works (even old ones). Old zucchini: cut out PULP with seeds + remove TOUGH SKIN. Young zucchini: no peeling needed (skin tender, almost no seeds). Remove damaged spots; cut into pieces convenient for grinding. Place with ONION in food processor or meat grinder.
BLEND entire batch into PUREE.
Transfer to thick-bottomed pot for cooking down.
Turn on LOW heat. As zucchini heats: releases LOT of liquid — must EVAPORATE as much as possible (don't leave stove + stir mixture).
After 1 HOUR: zucchini shrinks; almost all moisture evaporates.
Without turning off heat: add OIL to hot mixture.
Add MAYONNAISE (best if homemade — significantly affects taste).
Add NATURAL TOMATO PASTE.
Sprinkle ROCK SALT + SUGAR + PEPPER.
Mix everything. Same temperature: cook caviar 30 MINUTES; prevent sticking by moving lower layers up with spatula.
Pour VINEGAR; cook 2 MINUTES MORE.
Place jars on TOWEL; FILL to top with BOILING caviar. If using wide funnel: pre-scald with boiling water.
Screw jars; turn UPSIDE DOWN; place under thick TOWEL/blanket. After 10 HOURS: additional sterilization complete.
After OPENING: add little GARLIC for perfect + fully developed taste. Stores at room temperature in regular kitchen cupboard. Spread on bread OR serve as snack — does not leave anyone indifferent. Bon appétit!
Tips
- 1
THE INGREDIENT-RATIO PRESERVATION SCIENCE. Recipe's "ratios cannot be reduced/increased" specification is genuine canning safety. The mayonnaise + tomato paste + salt + vinegar combination forms PRESERVATION SYSTEM: tomato natural acidity + mayonnaise low-pH + salt + vinegar = pH below 4.0 (safe-canning threshold). Reducing any component: pH rises, preservation compromised, spoilage risk. Increasing: changes taste (mayonnaise-overload becomes greasy). The recipe-canonical ratios (1.5 kg zucchini : 100 g mayo : 70 g tomato paste : 25 ml vinegar : 25 g salt) are precision-calibrated. Same precision-canning principle: traditional Russian "no-sterilization" methods, modern food-safety guidelines.
- 2
THE 1-HOUR EVAPORATION + STIR-CONSTANTLY. Step 5's "evaporate liquid + don't leave stove" is texture + safety-essential. Zucchini = 95% water by weight. WITHOUT evaporation: too watery, won't preserve properly, ferments. PROPER EVAPORATION (1 hour low heat, stirring): liquid reduces 70-80%, mixture concentrates to PROPER CAVIAR consistency. The "don't leave stove + stir constantly" warning is genuine: zucchini scorches on bottom rapidly without stirring. Pro-tip: split prep — peel + grind during first 30 min, then babysit pot for 1 hour. Same evaporation-precision principle: French sauce reductions, Italian sugo preparations. For another classic Soviet-era zucchini preserve worth comparing, see Zucchini Caviar GOST.
- 3
THE NATURAL-TOMATO-PASTE SPECIFICATION. Recipe's "tomato paste without starch and water" is preservation-quality essential. INDUSTRIAL tomato pastes often contain: starch fillers (cheaper but reduce flavor), added water (dilution), preservatives (alter food chemistry), color enhancers. NATURAL tomato paste (concentrated tomatoes only): proper acidity, dense structure, traditional flavor. Read label: ingredients should list ONLY tomatoes (sometimes salt). The 70 g amount: significant flavor contribution + acid for preservation. Same quality-ingredient principle: traditional Italian conserva, French preserves with minimal-additive ingredients. Don't substitute ketchup (too sweet, water-based).
- 4
THE FRESH-GARLIC-AT-OPENING ENHANCEMENT. Step 15's "add little garlic before consumption" is genuine recipe-tradition. The COOKED caviar (after 10-hour thermal bath): rich + balanced + complex but mellow. ADDING fresh raw garlic just before serving: provides sharp pungent counterpoint, transforms basic caviar into REVELATORY zakuska. Amount: 1-2 cloves chopped fine per ~250 g serving. Mix immediately before plating. Same fresh-final-add technique: Caucasian satsivi finishing, Mediterranean herb finishing, traditional Russian zakuska enhancement. For another classic Russian-tradition preserve worth trying, try Eggplant Caviar Classic.
FAQ
Why mayonnaise in canned recipe? +
Soviet-era cooking innovation — mayonnaise serves multiple recipe purposes. (1) PRESERVATION: low-pH from vinegar + egg yolk + acid = adds to preservation acidity. (2) CREAMY TEXTURE: emulsifies caviar to spreadable consistency, signature texture not achievable without. (3) FLAVOR DEPTH: tangy + savory umami background. (4) SOVIET-NOSTALGIA: mayonnaise was 1970s-80s pantry staple, recipes incorporated it widely. The "thick mayonnaise" specification: industrial pourable mayonnaise dilutes too much, thick spoonable mayonnaise (Provansal-style) preserves texture. HOMEMADE mayonnaise: best flavor + recipe-canonical preference. Modern equivalent: full-fat European-style mayonnaise.
Why no sterilization needed? +
Recipe relies on multiple preservation factors that combined eliminate need for traditional sterilization. (1) EXTENDED COOKING (1.5+ hours): kills spoilage organisms, evaporates excess water. (2) HIGH ACID CONTENT (vinegar + tomato + mayo): pH below 4.0 inhibits bacterial growth. (3) SALT (25 g per 1.5 kg = ~1.7%): preservation level. (4) SUGAR (20 g): minor antibacterial contribution. (5) HOT-FILL into pre-sterilized jars: kills lid-area contamination. (6) 10-HOUR THERMAL BATH: extended sterilization-by-residual-heat. Combined: equivalent safety to standard sterilized canning. Same "no-sterilization" preservation principle: traditional Russian/Soviet recipes, modern food-safety-tested methods.
How long does it really keep? +
Properly sealed jars at room temperature: UP TO 12 MONTHS in regular kitchen cupboard (recipe-stated). Months 1-3: peak texture (creamy + bright tomato character). Months 4-8: PEAK FLAVOR (post-canning aging develops complexity, mayo-tomato-zucchini fully integrate). Months 9-12: still excellent, slight color darkening. Past 12 months: not recommended at room temp. COOL CELLAR (10-15°C): extends to 18 months. Once OPENED: refrigerate, consume within 2 weeks (mayo content limits opened-shelf-life). Storage tips: dark place, clean dry spoon, tight lid. Spoilage signs: bulging lid, fermentation bubbles, off-smell — discard.
What goes best with it? +
Soviet/Russian tradition has specific zucchini-caviar companions. CLASSIC: spread on dark rye bread (Borodinsky) — most iconic pairing. WITH FRESH GARLIC: stirred in before eating (recipe-suggested). HEARTY: with hot boiled potatoes, mashed potatoes, plain rice. WARMING: with grilled meats (chicken, pork, beef), kebabs. ZAKUSKA: served cold with vodka or beer (traditional drinking-snack). EGGS: scrambled eggs with caviar on top = breakfast staple. As IKRA: spread on small toasts as appetizer for guests. The caviar is fundamentally versatile — equally good cold, room temp, OR briefly heated. Soviet families: stockpile during summer, consume throughout winter.
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