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Kake soba is a hot Japanese soba noodle soup recipe that turns buckwheat noodles and warm savory broth into a simple comforting meal. This dish usually starts with soba noodles cooked until tender, then rinsed or drained before being served in a tsuyu broth made from dashi, soy sauce, mirin, and sometimes a little sugar for balance. The broth gives the noodles clean umami, gentle sweetness, and a light salty depth without feeling heavy. As the soba sits in the hot soup, the noodles absorb the aroma of the dashi while keeping their earthy buckwheat flavor and soft bite. Toppings such as green onion, wakame, tempura flakes, kamaboko, grated daikon, shichimi, or nori can add texture and fragrance. The final kake soba is warm, easy, and satisfying, making it a practical Japanese noodle meal for lunch or dinner.
Transcript
00:00Think all Japanese noodle soup tastes the same?
00:02This kakesoba says delicate beets heavy.
00:05Bonita flakes sink like snowfall, yuzu peel floats on top,
00:09and the aroma hits before the first sip.
00:12A printable version of this recipe is available on my website.
00:16You can google kakesoba sutachi to grab yours.
00:20Before we start, let's talk about the noodles.
00:23Unlike udon noodles, any variations are perfectly fine for soba noodles in my opinion.
00:29Get buckwheat soba whether it's fresh dried frozen from Japanese or Asian grocery stores
00:35or online for authentic flavour and convenience.
00:39For gluten-free, choose jiuwari soba, which is 100% buckwheat.
00:44It's more delicate, so stir gently and don't overcook.
00:49If you're up for a challenge, check out my homemade soba noodle recipe.
00:54Let's start with the kaeshi, the soul of your soba soup.
00:59In a small saucepan, combine 2 teaspoons of Japanese dark soy sauce,
01:03that's koiku shoyu, with 4 teaspoons of Japanese light soy sauce, usuku shoyu.
01:10Now, why this blend?
01:11I chose it to create a slightly lighter, more elegant broth colour while maintaining depth.
01:18Light soy sauce has a higher salt content but a paler colour and more delicate flavour profile
01:24than regular shoyu.
01:26If you only have regular Japanese soy sauce in your pantry, use that,
01:30but add just a tiny bit more to compensate for the lower salinity.
01:35Next, add one tablespoon of mirin, quarter teaspoon of sugar, and half tablespoon of sake.
01:43Bring this mixture to a boil over medium heat and let it bubble actively for one minute.
01:49This cooks off the raw alcohol edge and mellows out the sharp angular salinity.
01:55The name kaeshi actually comes from the Edo period technique called nikaisu, meaning to simmer back,
02:03referring to this exact process of heating soy sauce to create a unified, sophisticated flavour profile.
02:11Once that minute is up, pull it off the heat and set aside to cool.
02:17Now, ideally, you'd want to refrigerate this for at least half a day, preferably overnight or longer.
02:23That ageing period lets the flavours marry beautifully.
02:27But if you're making it straight away, you can absolutely skip the ageing.
02:32I think it'll still be delicious.
02:34While that's cooling, let's work on the dashi.
02:37Pour 500ml of your prepared dashi into a separate pot.
02:42I'm using a 16cm Yukihira pot here.
02:47And heat it until you see the first tiny bubbles forming at the edges just before a full boil.
02:54You can make your preferred dashi style.
02:56Now, my recommendation for kakesoba is the classic konbu-katsuobushi combination.
03:01Since kakesoba is so delicate, homemade dashi is ideal, followed by high-quality tea bakusau dashi packets.
03:09Instant granulated dashi is an emergency backup, but certainly not my first choice for this.
03:16If you want to make it plant-based, you can prepare vegan dashi ahead of time.
03:21Turn off the heat immediately when you see those little bubbles.
03:27Now comes my small secret step that makes all the difference.
03:32Add approximately 3g of katsuobushi, that's about one small handful of bonito flakes.
03:39And cover the pot with a lid.
03:41Let it sit undisturbed for 2 minutes.
03:45After 2 minutes, strain out the katsuobushi through a fine mesh sieve.
03:49This technique is called oigatsuo, which is basically a fresh bonito umami booster.
03:56Think of it as a finishing touch that adds aromatic top notes to your foundational dashi.
04:02Return the beautiful aromatic dashi to medium-low heat.
04:06Add your kaishi mixture and stir to combine.
04:10Now, here's the critical moment.
04:13Taste your broth.
04:14Always taste your kakesoba broth at near serving temperature.
04:18Too salty, add a splash of water or dashi.
04:22Not salty enough, a small pinch of salt or soy sauce.
04:26Too flat, a tiny bit more sugar has roundness.
04:30Remember, soba broth is traditionally more delicate than udon,
04:35so air on the side of subtle rather than assertive.
04:39Keep this broth warm on the lower setting while we handle the noodles.
04:45Okay, let's start cooking the noodles.
04:47The golden rule for soba noodle boiling is simple.
04:51Go big and go deep.
04:54Professionals use massive pots that hold gallons of water at once,
04:58maintaining a gentle rolling boil that lets noodles swim freely rather than clump together.
05:04At home, aim for about 2 liters of water per serving.
05:09Bring it to a vigorous rolling boil over high heat.
05:12When you see large bubbles breaking the surface consistently,
05:17add your two portions of soba noodles and cook for a tiny bit shorter than the package states.
05:24One serving of soba noodles before boiling is dry noodles,
05:28about 100 grams, and fresh noodles, 120 grams.
05:36Leave the lid off entirely, covering the pot creates too much heat buildup,
05:40causing the starch form to explode upward in an instant kitchen disaster.
05:46For the first minute after adding noodles, gently separate the strands with chopsticks or tongs,
05:52using a slow swimming motion rather than aggressive stirring.
05:56If the foam surges, lower the heat or pull the pot off the burner instead of adding water.
06:02That milky water you're boiling your noodles in isn't waste, it's soba-yu.
06:08Japanese soba culture includes pouring this starchy liquid into your leftover dipping sauce
06:13at the end of the meal, creating a warming soup.
06:16To show you, we'll save some on the side if you want to try it later.
06:23The moment your timer goes off, drain the noodles into a colander.
06:28Then immediately rinse them under cold running water.
06:32Ice water is even better.
06:34Gently massage the noodles as the water runs over them,
06:38working your fingers through to remove the slippery starch coating that formed during cooking.
06:45You might be thinking, wait, I'm making hot noodle soup, so why rinse them in cold water?
06:50Even though they'll end up in hot broth, this cold rinse and shock step
06:55is what gives them clean flavour and proper texture.
07:00Finally, pour hot water over the noodles to re-warm them.
07:04Make sure to do this right before assembling.
07:07Warming them too early will result in fragile noodles that break easily.
07:13An optional but recommended, also warm your serving balls with boiling water, then drain.
07:19This prevents heat loss, so the broth stays nice and hot.
07:22Then, put the noodles into your soup, and put the noodles into the soup.
07:24Assemble time.
07:25Then, portion the noodles into your bowls, pour in the beautiful, aromatic hot broth,
07:30and loosen once with chopsticks until the strands separate.
07:34And top in mine with finely chopped green onions, a sprinkle of shichimi togarashi, and yuzu peel.
07:42And let me tell you, yuzu peel really makes this soup elegant.
07:47Orange or mayo lemon is a good substitute.
07:51That citrus note just floats on top and transforms the whole experience through your nose.
07:58Of course, you can customize this however you like too.
08:02For richness, add an onsen tamago, tempura, or tenkasu.
08:06Want color and texture, add blanched spinach, rehydrated wakame seaweed, or sliced kamoboko fish cake.
08:15For sweet savory contrast, top with kitsune to transform this into kitsune soba,
08:20or add slices of seared duck breast for kamonanban soba.
08:25And don't forget you can enjoy that soba cooking liquid, the soba you, after finishing the bowl.
08:32Enjoy every warming delicious bite.
08:34Want even more delicious recipes?
08:36Grab my free cookbook from the link in the description.
08:40Okay, let's go over the ingredients one more time.
08:43And if you're ready to cook, grab the written instructions by clicking the full recipe box
08:47with a picture that's about to pop up on your screen.
08:51That's a wrap.
08:52You can find the full printable version of this recipe on my website linked right here on the screen.
08:58It has all the extra details to help you get it perfect every time.
09:02If you enjoyed this, check out my other noodle recipes.
09:06And next week, I'm making castella cake.
09:08Hit subscribe so you don't miss it.
09:11See you then.
09:11See you then.
09:11Amen.
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