Authentic Korean Soy Sauce Braised Chicken (Ganjang Jjimdak): Sweet, Savory, and Kid-Friendly

What is Korean Ganjang Jjimdak and Why is it the Ultimate Family Comfort Meal?

Ganjang Jjimdak is a classic Korean braised chicken dish simmered in a rich, glossy soy-based sauce with hearty potatoes, sweet aromatics, and chewy sweet potato glass noodles (dangmyeon). Whenever my family craves tender, fall-off-the-bone chicken coated in a deeply savory sauce alongside springy noodles, this is my go-to recipe. The beauty of cooking it at home is its versatility: I keep it mild and sweet for my kids—who are totally obsessed with slurping the noodles—and simply stir in chili flakes at the very end when my husband and I want an extra spicy kick.

What Ingredients Do You Need for Authentic Ganjang Jjimdak?

Main Ingredients (Serves 4–5):

• Chicken (Bone-in stew cuts or bone-in thighs/drumsticks): 1 kg (approx. 2.2 lbs)
• Korean Sweet Potato Glass Noodles (Dangmyeon): 100g (approx. 3.5 oz)
• Potatoes: 3 medium (peeled and cut into hearty chunks)
• Yellow Onion: 1 large
• Scallion (Green Onion): 1 large stalk
• Water: 900 ml (approx. 3.8 cups)
• Fresh Chili Peppers or Dried Red Chili (Optional): 1 to 2 (or Korean red pepper flakes to finish)

Savory Braising Sauce:

• Soy Sauce: 8 tbsp
• Korean Black Bean Sauce Powder (Jjajang Powder): 2 tbsp (the secret dark glaze booster)
• Oyster Sauce: 2 tbsp
• Granulated Sugar: 3 tbsp
• Minced Garlic: 1 tbsp
• White Vinegar: 1 tbsp
• Fine Salt: 3 pinches (for searing the chicken)
• Black Pepper: To taste (generous crack)

Easy Ingredient Substitutions for Shoppers

Original Ingredient	North American Grocery Alternative	Where to Find & Notes
Korean Dangmyeon (Glass Noodles)	Chinese cellophane/glass noodles, wide bean vermicelli, or Japanese shirataki	Asian aisle at Walmart, Kroger, or Whole Foods. Sweet potato starch noodles deliver the best chew.
Korean Jjajang Powder	Dark soy sauce (1.5 tbsp) or Chinese sweet bean sauce (Tianmianjiang)	Asian food aisle. Dark soy sauce gives that signature deep caramel color and rich body.
Bone-In Stewing Chicken	Bone-in skin-on chicken thighs, drumsticks, or cut-up whole chicken	Standard meat department at any local supermarket. Cut into 2-inch pieces.
Korean Chili / Cheongyang Peppers	Jalapeño, Serrano pepper, or crushed red pepper flakes	Standard produce aisle. Add toward the end for an adult spicy finish.

How Do You Cook Korean Ganjang Jjimdak Step-by-Step?

Step 1: Soak Noodles and Prep the Chicken

Submerge the glass noodles in lukewarm water for at least 30 minutes to soften. Soak the chicken pieces in cold water for 15 minutes to draw out excess bone marrow and blood, then rinse thoroughly under running water and drain. Make shallow diagonal slits across the thickest parts of the chicken so the savory marinade penetrates right to the bone.

Step 2: Sear the Chicken in Its Own Juices

Cut the potatoes, yellow onion, and green onions into uniform, bite-sized pieces. Heat a wide, deep braising pan or wok over medium heat and place the chicken directly into the dry pan with 3 pinches of salt. Sauté without adding cooking oil—the natural chicken skin will quickly render plenty of aromatic chicken fat to sear the meat until lightly golden.

Step 3: Add Sauces, Aromatics, and Braise

Once the chicken is partially browned, add 8 tablespoons of soy sauce, 2 tablespoons of Jjajang powder, 2 tablespoons of oyster sauce, and 3 tablespoons of sugar directly to the pan. Toss until the meat is glossy and coated, then add the sliced green onions, onions, and minced garlic. Stir-fry until the vegetables begin to soften, pour in 900 ml of water, and bring to a rapid boil.

Step 4: Simmer with Potatoes and Finish with Glass Noodles

Once boiling, add the potato chunks, 1 tablespoon of vinegar, and a generous crack of black pepper. Lower the heat to medium-low and simmer covered for 10 to 15 minutes until the potatoes are fork-tender. Add the drained, pre-soaked glass noodles directly into the bubbling sauce and cook for another 5 minutes until the noodles turn translucent and bouncy. If you want a spicy version, scatter fresh sliced chili peppers or red pepper flakes over the top right before serving.

Pro Tips from Experience

• The 2-Tablespoon Jjajang Powder Shortcut: Authentic restaurant Jjimdak gets its dark mahogany glaze from caramelized food coloring or heavy dark soy sauces. Adding 2 tablespoons of Korean Jjajang powder provides that rich restaurant gloss while introducing subtle roasted onion notes that balance the salty soy sauce.
• Never Skip the Chicken Slits and Cold Soak: Soaking bone-in chicken for 15 minutes eliminates cloudy scum and unwanted odors before it hits the stove. Scoring the meat with 1 to 2 shallow knife slits allows the soy glaze to penetrate deep into the center rather than clinging only to the surface skin.
• No Cooking Oil Needed for the Sear: Chicken thighs and drumsticks release ample savory fat as they heat up in a wide pan. Searing the raw chicken in its own rendered oils prevents the final braising sauce from turning uncomfortably greasy.
• Pre-Soak the Glass Noodles for 30 Minutes: Dried sweet potato noodles absorb cooking broth like a sponge. Pre-soaking them in water ensures they turn springy and slurpable in just 5 minutes without soaking up all the braising liquid or turning mushy.

How to Store & Reheat Jjimdak

• The Glass Noodle Rule: If your jjimdak contains Korean glass noodles (dangmyeon), try to finish or remove them before refrigerating. Leftover glass noodles absorb nearly all the braising liquid overnight and turn overly soft and bloated.
• Storage: Store the chicken and vegetables in an airtight container for up to 4 days in the fridge.
• Reheating: Reheat in a skillet over medium heat. If you removed the noodles, boil fresh noodles separately and toss them into the simmering chicken during the last 2 minutes of heating.

★Do you want some Korean Spicy Braised Chicken(Dakbokkeumtang)?