Phat Phak Boong (Morning Glory Stir-Fry) – Classic Thai Side Dish
1. Introduction
If you’ve ever wandered through the bustling streets of Bangkok or visited a local Thai eatery, you’ve likely seen a simple yet irresistible green dish sizzling in woks—Phat Phak Boong (ผัดผักบุ้ง). Known in English as Morning Glory Stir-Fry, this is one of Thailand’s most beloved vegetable dishes.
Why so popular? Because it’s everything Thai food should be: bold, fast, and full of flavor. Imagine crisp, fresh greens tossed in a hot wok with garlic, chili, soy sauce, and oyster sauce, creating a savory umami punch that complements just about any meal.
In this guide, you’ll learn how to prepare Phat Phak Boong at home, from choosing the right ingredients to perfecting the wok technique, plus serving tips and storage instructions.
2. Ingredients Breakdown
Here’s what you’ll need to make an authentic Phat Phak Boong:
- Morning Glory (Water Spinach): The star of the dish. Found in Asian grocery stores, it’s fresh, leafy, and slightly crunchy.
- Garlic: Traditionally smashed whole cloves are used for a bold aroma.
- Red Chilies: Adds a spicy kick. Adjust the amount depending on your spice tolerance.
- Oyster Sauce: Brings depth and umami to the stir-fry.
- Soy Sauce: Balances saltiness with rich flavor.
- Fish Sauce (optional): For a more authentic Thai flavor.
- Sugar: Just a pinch enhances balance.
- Oil: A neutral oil like vegetable or sunflower works best for stir-frying.
Substitutions & Options:
- Replace oyster sauce with a vegetarian oyster mushroom sauce for a vegan version.
- Use spinach or kale if water spinach isn’t available, though texture will differ.
- For milder heat, substitute red chilies with sweet peppers.
3. Step-by-Step Instructions
- Prep the Morning Glory: Wash thoroughly, trim off tough ends, and cut into 3–4 inch pieces.
- Prepare the Sauce: Mix oyster sauce, soy sauce, fish sauce (if using), and sugar in a small bowl. Set aside.
- Heat the Wok: Place a wok or large skillet over high heat until very hot.
- Add Garlic and Chili: Quickly toss in smashed garlic and sliced chilies. Stir-fry for 20–30 seconds until fragrant.
- Stir-Fry the Greens: Add the morning glory. Toss quickly to coat with the garlic and chili.
- Add the Sauce: Pour in the prepared sauce. Stir-fry for 1–2 minutes until the greens are wilted but still vibrant.
- Serve Immediately: Remove from heat and plate while still hot.
Tip: Cook everything quickly—this dish is best when the greens retain a slight crunch.
4. Tips and Variations
- Quick Cooking is Key: Overcooking will make the greens mushy.
- Add Protein: Stir-fry with shrimp, chicken, or tofu for a complete meal.
- Extra Aromatics: A squeeze of lime or fresh basil leaves can brighten the dish.
- Spice Level: Adjust chilies to your taste—Thai style is often quite spicy!
5. Serving Suggestions
Phat Phak Boong is usually served as part of a Thai family-style meal. Here are some pairing ideas:
- With steamed jasmine rice or sticky rice.
- Alongside Thai curries like Panang or Green Curry.
- As a fresh, flavorful side for grilled meats.
- Garnish with extra chili slices or fried garlic for presentation.
6. Storage and Reheating Instructions
- Fridge: Store leftovers in an airtight container for up to 2 days.
- Reheating: Warm in a hot wok or skillet for best texture. Microwave reheating may cause greens to turn mushy.
- Freezing: Not recommended, as leafy greens lose texture when frozen.
7. Recipe Notes
- Can be prepped ahead by washing and cutting the greens in advance.
- Best cooked in a wok for authentic flavor, but a large skillet works too.
- Use very high heat for that signature smoky “wok hei” aroma.
8. Nutrition Information (Per Serving)
| Nutrient | Amount (Approx.) |
|---|---|
| Calories | 110 |
| Fat | 5g |
| Saturated Fat | 0.5g |
| Carbohydrates | 12g |
| Sugar | 4g |
| Fiber | 3g |
| Protein | 4g |
| Sodium | 720mg |
| Cholesterol | 0mg |
| Calcium | 100mg |
| Iron | 2mg |
Nutrition information is an estimate and may vary based on ingredients used.
9. Recipe Card Summary
Course: Side Dish
Cuisine: Thai
Servings: 3–4
Prep Time: 10 minutes
Cook Time: 5 minutes
Total Time: 15 minutes
Ingredients:
- 1 bunch morning glory (water spinach), washed and cut
- 3 garlic cloves, smashed
- 2 red chilies, sliced
- 1 tbsp oyster sauce
- 1 tbsp soy sauce
- 1 tsp fish sauce (optional)
- 1 tsp sugar
- 1–2 tbsp oil
Instructions:
- Prep morning glory and sauce mixture.
- Heat wok on high.
- Stir-fry garlic and chilies.
- Add morning glory and toss.
- Pour in sauce, cook 1–2 minutes.
- Serve hot with rice.
Notes:
- Vegan option: Use mushroom-based oyster sauce.
- Cook quickly to maintain crunch.
🏷️ Diet Tags
- Vegetarian (with substitutions)
- Gluten-Free (with tamari instead of soy sauce)
- Dairy-Free
- Low-Calorie
🌿 Health Benefits
- Rich in vitamins A and C for immune support.
- High in fiber for digestion.
- Low in calories yet nutrient-dense.
- Antioxidant properties from leafy greens and garlic.
10. FAQs
Q1: Can I make Phat Phak Boong without a wok?
Yes, a large skillet works fine—just ensure it gets very hot.
Q2: What can I use instead of morning glory?
Spinach, kale, or Swiss chard make decent substitutes if water spinach is unavailable.
Q3: Is this dish spicy?
It can be! Adjust chili levels to your preference.
Q4: Can I add meat or tofu?
Absolutely—shrimp, chicken, or tofu all work beautifully.
Q5: Is Phat Phak Boong healthy?
Yes, it’s low in calories, packed with fiber, vitamins, and minerals.
11. Final Thoughts
Phat Phak Boong is a dish that embodies the soul of Thai cuisine—simple, quick, and bursting with flavor. With just a handful of ingredients and a blazing hot wok, you can create a vibrant side dish that pairs with almost any meal.
Whether you’re new to Thai cooking or simply craving a taste of Bangkok at home, this stir-fry is the perfect place to start. Try it, experiment with spice levels, and let me know in the comments how your version turned out.

