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Kuku-ye Kadoo Sabz (کوکو کدو سبز) — Persian Zucchini Frittata

Classic Persian zucchini kuku is a light frittata-style dish with sautéed zucchini, fluffy eggs, and saffron aroma. Crisp and golden outside, tender inside, it’s perfect for a quick lunch or dinner.

By Zaffaron Kitchen· Published March 13, 2026 Verified Recipe
Vegetarian Nut-Free Halal
Contains: dairy, eggs, gluten
60 min total Prep 35m · Cook 25m 4 servings 270 cal ~$1.35/serving
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Kuku - ye Kadoo Sabz - Persian Zucchini Frittata - authentic persian recipe

Printable Recipe Card

Servings: 4 · Total: 60 min · Difficulty: easy

Ingredients (quick list)

  • 0.25 tsp Saffron threads (finely crushed)
  • 2 tbsp Boiling water (for blooming saffron)
  • 700 g Zucchini (trimmed; coarsely grated (large holes))
  • 1.25 tsp Salt (divided)
  • 6 tbsp Neutral oil (such as sunflower, canola, or grapeseed; divided)
  • 6 large Eggs (room temperature)
  • 60 ml Milk (whole or 2%)
  • 30 g All-purpose flour (about 1/4 cup, spooned and leveled)
  • 1 tsp Baking powder (for a lighter texture)
  • 0.5 tsp Black pepper (freshly ground)

Steps (summary)

  1. Bloom the saffron: crush the saffron threads to a fine powder, then stir with 2 tablespoons boiling water in a small cup. Cover…
  2. Prepare and drain the zucchini: grate the zucchini into a bowl, sprinkle with 1 teaspoon of the salt, and toss well. Let sit 10…
  3. Sauté the zucchini: heat 2 tablespoons neutral oil in a 25–28 cm (10–11 inch) nonstick skillet over medium heat. Add the squeez…
  4. Mix the batter: in a large bowl whisk the eggs for 45–60 seconds until foamy. Whisk in milk, the bloomed saffron water, black p…
  5. Pan-fry the kuku: wipe the skillet clean, then heat 2 tablespoons oil over medium-low heat. Pour in the mixture and smooth the…
  6. Flip and finish: slide the kuku onto a plate. Add 2 tablespoons oil to the skillet and heat 30 seconds. Invert the kuku back in…

+ 1 more steps in the full instructions section below.

Cultural Background

Kuku is a well-known family of Persian egg-based dishes often served for light meals, picnics, and gatherings because it tastes good warm or at room temperature. Zucchini kuku is especially popular in seasons when squash is abundant, and it is commonly paired with yogurt, herbs, and pickles.

savorymildly sweetbutterycrispy edgestender centerfluffysaffrontoasty eggfresh zucchini🌶 low

Equipment

Box grater (large holes)Clean kitchen towel or paper towelsLarge mixing bowlWhisk25–28 cm (10–11 inch) nonstick skillet with lidFlexible spatulaSmall cup for blooming saffronInstant-read thermometer (optional)

💡 Tips

  • Squeezing the grated zucchini very dry is the main key to a crisp exterior and a fully set center.
  • Keep the heat at medium-low once the batter is in the pan; high heat browns the outside before the inside cooks.
  • For extra crisp edges, drizzle 1 additional tablespoon oil around the perimeter halfway through the first side cooking.
  • If your zucchini are very watery, increase flour to 40 g (about 1/3 cup) to help bind without becoming bready.
  • A nonstick skillet makes flipping easier; if using stainless steel, preheat well and use a bit more oil to prevent sticking.

⚠️ Common Mistakes

  • ❌ Not squeezing enough water from the grated zucchini

    💡 Why: Excess moisture steams the kuku, preventing browning and causing a wet, under-set center.

    ✅ Fix: Salt the zucchini, rest 10 minutes, then squeeze very firmly in batches until nearly dry; sauté until surface moisture is gone.

  • ❌ Cooking over heat that is too high

    💡 Why: The crust browns before the eggs set, leading to a burnt exterior and runny middle.

    ✅ Fix: Use medium-low heat once the mixture is in the pan and keep the lid on for the first side to gently set the center.

  • ❌ Flipping too early or without enough oil

    💡 Why: An under-set first side can crack and stick, tearing the kuku.

    ✅ Fix: Wait until the edges are deeply golden and the center only slightly wobbles; add fresh oil before flipping and use a plate to invert safely.

🧊 How to Store

Cool completely, then refrigerate in an airtight container up to 4 days. Reheat in a skillet over medium-low with 1–2 teaspoons oil for 3–5 minutes per side to restore crispness, or warm in a 180°C/350°F oven for 8–10 minutes. Freeze slices up to 2 months; thaw overnight in the refrigerator before reheating.

📅 Make Ahead

Grate, salt, squeeze, and sauté the zucchini up to 2 days ahead; cool and refrigerate airtight. Bloom saffron up to 24 hours ahead and refrigerate covered. Mix and cook just before serving for the crispest crust, or cook fully and re-crisp in a skillet when ready to eat.

🍽️ Pairs Well With

  • Plain yogurt or strained yogurt
  • Fresh herbs and mixed greens
  • Pickles or torshi
  • Flatbread or rice
  • Tomatoes and cucumbers with lemon juice

Regional Variations

  • Tehran-style home cookingOften kept simple with saffron and black pepper, focusing on a thin, crisp kuku that is easy to slice for sandwiches or picnic plates.
  • Caspian-influenced northern IranCommonly made with a thicker herb presence and sometimes a slightly softer interior, served alongside abundant fresh herbs and tart pickles.
weeknight dinner light lunch picnic potluck meal prep
#vegetarian#pan-fried#weeknight#high-protein#meal-prep-friendly

Ingredients

  • 0.25 tspSaffron threads (finely crushed)
  • 2 tbspBoiling water (for blooming saffron)
  • 700 gZucchini (trimmed; coarsely grated (large holes))
  • 1.25 tspSalt (divided)
  • 6 tbspNeutral oil (such as sunflower, canola, or grapeseed; divided)
  • 6 largeEggs (room temperature)
  • 60 mlMilk (whole or 2%)
  • 30 gAll-purpose flour (about 1/4 cup, spooned and leveled)
  • 1 tspBaking powder (for a lighter texture)
  • 0.5 tspBlack pepper (freshly ground)

🔄 Substitutions

  • Milk→ Unsweetened soy milk or oat milk
  • All-purpose flour→ Chickpea flour
  • Neutral oil→ Light olive oil

Instructions

  1. 1

    Bloom the saffron: crush the saffron threads to a fine powder, then stir with 2 tablespoons boiling water in a small cup. Cover and let stand 10 minutes to fully release color and aroma. Meanwhile, set a clean kitchen towel or several paper towels near your work area for draining zucchini.

  2. 2

    Prepare and drain the zucchini: grate the zucchini into a bowl, sprinkle with 1 teaspoon of the salt, and toss well. Let sit 10 minutes to draw out moisture. Transfer to the towel and squeeze firmly in batches until very dry; you should remove as much liquid as possible for a crisp, well-set kuku.

  3. 3

    Sauté the zucchini: heat 2 tablespoons neutral oil in a 25–28 cm (10–11 inch) nonstick skillet over medium heat. Add the squeezed zucchini and sauté 8–10 minutes, stirring often, until softened and most surface moisture has evaporated. Spread it out, cook 1 minute more, then cool 5 minutes.

  4. 4

    Mix the batter: in a large bowl whisk the eggs for 45–60 seconds until foamy. Whisk in milk, the bloomed saffron water, black pepper, remaining 1/4 teaspoon salt, flour, and baking powder until smooth. Fold in the cooled sautéed zucchini, breaking up clumps so the mixture is evenly distributed.

  5. 5

    Pan-fry the kuku: wipe the skillet clean, then heat 2 tablespoons oil over medium-low heat. Pour in the mixture and smooth the top. Cover and cook 10–12 minutes, until the edges are set and golden and the center is mostly set with only slight wobble. Reduce heat if browning too fast.

  6. 6

    Flip and finish: slide the kuku onto a plate. Add 2 tablespoons oil to the skillet and heat 30 seconds. Invert the kuku back into the pan, browned-side up. Cook uncovered 6–8 minutes over medium-low until the second side is deeply golden and the center reaches 71°C/160°F.

  7. 7

    Rest and serve: transfer to a cutting board and rest 5 minutes for clean slices. Cut into wedges or squares. Serve warm or at room temperature for best flavor; the saffron aroma becomes more pronounced after a short rest, and the crust stays crisp if not covered while cooling.

🪪 Recipe Passport

Origin: Persian Cuisine
Researched by: Zaffaron Kitchen
Published: March 13, 2026

Cultural Background

Kuku is a well-known family of Persian egg-based dishes often served for light meals, picnics, and gatherings because it tastes good warm or at room temperature. Zucchini kuku is especially popular in seasons when squash is abundant, and it is commonly paired with yogurt, herbs, and pickles.

Regional Variations

Tehran-style home cooking: Often kept simple with saffron and black pepper, focusing on a thin, crisp kuku that is easy to slice for sandwiches or picnic plates.
Caspian-influenced northern Iran: Commonly made with a thicker herb presence and sometimes a slightly softer interior, served alongside abundant fresh herbs and tart pickles.

Researched from multiple sources and validated by the Zaffaron editorial team. Every recipe is tested for accuracy, measurements, and cultural authenticity.

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Nutrition per serving

270
Calories
12g
Protein
19g
Fat
14g
Carbs
2.5g
Fiber
780mg
Sodium

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