2

votes

How do you prepare your Japanese sweet potatoes?

Commented on February 11, 2015
Created April 22, 2012 at 2:47 PM

I have tried microwaving Japanese sweet potatoes (purple skin, white flesh) a couple of times just like I do yams, but they are so dry no matter how much butter or ghee I add, that we can't even get them down. I don't eat sweet potatoes often, but I give them to my kids a lot. How do you make them work?

105ed92a3f7c20feae9a400f4be96668

on February 11, 2015
at 03:35 AM

After reading about a dozen comments on cooking the purple-skinned sweet potato, I washed and put my 19 ounce one in a Ziploc Zip'n Steam Bag with a teaspoon of distilled water and microwaved it for 7 minutes. I was preparing the rest of the meal and then microwaved the bag another 30 seconds. It came out perfect... not dried out. It was my first taste of this sweet potato and it went very well with the Kerrygold butter and no salt. I think that being forewarned about the dryness was a great help and the teaspoon of water kept the potato perfectly moist. My oven is 1250 watts and has a turntable. Your results may vary. Wynn :-)

Cf08ad26759fdd206a2c9f9385080a57

(995)

on July 16, 2013
at 05:11 AM

I'm jealous of the Yaki Imo guys in japan. Fresh japanese sweet potatoes > ice cream truck every time. http://gakuran.com/the-yaki-imo-man-of-japan/

Ebb10603524dd22621c1155dd7ddf106

(19150)

on February 07, 2013
at 03:26 PM

I would be acting remiss on this subject if I didn't mention that you eat sweet potatoes every time you eat "yams", since you aren't eating yams, you are eating standard, orange-flesh sweet potatoes. Sweet potatoes being called "yams" are a disaster on a site like this where people actually consume true yams as well as all manner of sweet potato. :-) http://en.wikipedia.org/wiki/Yam_(vegetable) v. http://en.wikipedia.org/wiki/Sweet_potato

Medium avatar

on April 25, 2012
at 12:16 PM

Yes! Add bacon as you see fit :) Last night I steamed one until very soft and mashed it with half a stick of kerrygold (unsalted) which I had melted with cinnamon. It was like Thanksgiving .

1133603ea602c6824da56e8b596c9754

(614)

on April 23, 2012
at 08:26 PM

Like potato hash! Yum!

1133603ea602c6824da56e8b596c9754

(614)

on April 23, 2012
at 08:25 PM

definitely sweet enough, but I like butter! Thanks

1133603ea602c6824da56e8b596c9754

(614)

on April 23, 2012
at 08:24 PM

Wasabi butter does sound good. Do you make it yourself?

1133603ea602c6824da56e8b596c9754

(614)

on April 23, 2012
at 08:24 PM

Thanks for that! Can't wait to poke around your site!

78cb3c4f70de5db2adb52b6b9671894b

(5519)

on April 23, 2012
at 01:54 PM

This is unrelated, but wow, that website is amazing. All the food looks delicious:)

78cb3c4f70de5db2adb52b6b9671894b

(5519)

on April 23, 2012
at 04:15 AM

wasabi butter...wow, that sounds so good!

6714718e2245e5190017d643a7614157

on April 23, 2012
at 02:35 AM

+1 Juba, I bought my first one this weekend and baked it. It was delish!

F4aff43df6a8a49a1c3879c1233ee560

(459)

on April 22, 2012
at 09:58 PM

I microwave them, then mash them up in a pan with a ton of butter and some sausage.

1133603ea602c6824da56e8b596c9754

(614)

on April 22, 2012
at 08:09 PM

This is what I was doing already, but thanks!

1133603ea602c6824da56e8b596c9754

(614)

on April 22, 2012
at 08:08 PM

Thanks jesuisjuba!

1133603ea602c6824da56e8b596c9754

(614)

on April 22, 2012
at 08:05 PM

Makes sense. My yams come out OK though. I mainly do that to save time, but I will try boiling or roasting. Thanks.

Bfa1c9eacfc94a1b62f3a39b574480c6

(3700)

on April 22, 2012
at 07:19 PM

Microwaving them may make them dry. The entire point of a microwave is to vibrate water molecules (give them kinetic energy) so they undergo a phase change to steam, which heats the food. You'll be left with warm/hot potatoes, with less water. Try baking them or boiling them.

Fc64db6a555559762432d503a1dbad19

(1478)

on April 22, 2012
at 04:01 PM

I always cook with the skin on.

Ce7e28769d92d5de5533e775b1de966e

on April 22, 2012
at 03:44 PM

mmm... i like 350 for around an hour and using a hot pad i'll squeeze with my hand. if tender? out. if not? another 15 minutes or so. you can also do 450 for 40 mins.

C4ed6ba382aed2eefc18e7877999a5de

(1579)

on April 22, 2012
at 03:36 PM

how long do you roast them and what temperature?

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15 Answers

6
Ce7e28769d92d5de5533e775b1de966e

on April 22, 2012
at 03:03 PM

Japanese sweet potatoes are my favourite in the entire world. I don't own a microwave so I have no idea how they would come out, but roasting in the oven until they're soft to the touch and I get great results. I love their dryer quality, yes much less than regular sweet potatoes, and their delicate chestnut flavour.

Normally I eat them plain and never have had them as dry as your describe. Try roasting one in the oven and see if that makes a difference.. a little N=1 sweet potato action :)

Here is a great idea list on what to do with them from compound butter to dessert.

C4ed6ba382aed2eefc18e7877999a5de

(1579)

on April 22, 2012
at 03:36 PM

how long do you roast them and what temperature?

Ce7e28769d92d5de5533e775b1de966e

on April 22, 2012
at 03:44 PM

mmm... i like 350 for around an hour and using a hot pad i'll squeeze with my hand. if tender? out. if not? another 15 minutes or so. you can also do 450 for 40 mins.

6714718e2245e5190017d643a7614157

on April 23, 2012
at 02:35 AM

+1 Juba, I bought my first one this weekend and baked it. It was delish!

1133603ea602c6824da56e8b596c9754

(614)

on April 22, 2012
at 08:08 PM

Thanks jesuisjuba!

2
D3d0ab621ce3e252f09c91721ad84940

on December 29, 2012
at 04:59 AM

I live in Japan and the most popular way they cook them here is by wrapping them and either roasting them over coals or baking them in the oven. Depending on how long you roast them will determine how sweet they will come out. In Japan, you can purchase them already roasted in a lot of the grocery stores and they are the sweetest root vegetable I have ever eaten. They don't need any accompaniments to help with flavor. They taste like the sweetest caramelized sweet potatoes without the added sugar or fat. I like to call them the candy of root vegetables. When I want the occasional sweet, I eat these instead of cookies, pie, etc. They are just as good and completely natural.

Cf08ad26759fdd206a2c9f9385080a57

(995)

on July 16, 2013
at 05:11 AM

I'm jealous of the Yaki Imo guys in japan. Fresh japanese sweet potatoes > ice cream truck every time. http://gakuran.com/the-yaki-imo-man-of-japan/

2
91c2e2a35e578e2e79ce7d631b753879

on April 23, 2012
at 01:46 PM

I parboil them, then pan fry them in ghee; bake them; roast them, make french fries out of them. I've made them into potato chips and tater tots. I've mashed them with ghee, coconut milk and vanilla for Vanilla Mashed Sweet Potatoes - absolutely ambrosial. The one thing I haven't done to/with them is microwave them.

78cb3c4f70de5db2adb52b6b9671894b

(5519)

on April 23, 2012
at 01:54 PM

This is unrelated, but wow, that website is amazing. All the food looks delicious:)

1133603ea602c6824da56e8b596c9754

(614)

on April 23, 2012
at 08:24 PM

Thanks for that! Can't wait to poke around your site!

1
10cbe15a0c37caf2bf2bd512d7ca1bae

on May 07, 2012
at 10:33 PM

I cut them up into bite size or smaller cubes and sort of steamfry them. Put them in a frying pan with a bunch of butter, add a splash of water, cover and wait for a while. Stir and repeat until they are soft. Deglazing a pan with this method adds a whole new level of delicious. One of my favorite meals is pan-seared lamb shoulder with potatoes cooked in the pan right after.

1
Fc64db6a555559762432d503a1dbad19

(1478)

on April 22, 2012
at 03:14 PM

I rub them with olive oil, salt and pepper and bake them in the oven or toaster oven at 450 until they squish when you push them with your finger. Also if you need them in a hurry, put some water in the bottom of a microwave safe bowl with the sweet potato and microwave for about 13 minutes. The water helps them from drying out in the microwave.

Fc64db6a555559762432d503a1dbad19

(1478)

on April 22, 2012
at 04:01 PM

I always cook with the skin on.

0
6e765bab50436bcbe25c990e1b1f5358

on March 29, 2013
at 08:27 PM

when you microwave japanese sweet potatoes be sure to put them in a deep dish and add about an inch of water in the dish then cover with plastic wrap, it sort of steams them and does not dehydrate them further. They come out really well with this method though the baking method is the best for bringing out their flavor in my opinion.

0
95fc977d58f01555544536182e438b5b

on February 07, 2013
at 11:54 AM

wrap in foil and bake them for 30 mins. when you unwrap foil the edges are alittle charred and the inside is soft but still hard enough to hold firmly in your hands and eat it on its own.

0
E68bdbd83e45fd5be130e393ace9c9a9

(2058)

on May 08, 2012
at 03:39 AM

I peel them, cube them, and steam them in a steam basket in a big pot till soft. It's quick and you can add whichever fat you like at the end.

Sometimes for breakfast I eat steamed Japanese sweet potatoes with butter, cinnamon, and even a sprinkle of sugar (gasp!) It's fun living on the edge (my diet is pretty simple) but honestly, I like them best with coconut oil and salt.

0
61852721b5ff3613f56f043fe890a679

(1172)

on May 08, 2012
at 03:10 AM

two words:

DUCK

FAT.

Two methods:

  1. nuke them in a wet paper towel till nearly cooked through.
  2. cut into large dice, then sautee in DUCK FAT in a cast-iron pan.

or

  1. Grate raw peeled sweet potato on a box grater (largest holes) or with your food processor.
  2. Sautee in DUCK FAT in a cast-iron pan.

Trust me.

This is The Way.

0
633e56056bc2423677c1a9003c09d0e1

on April 23, 2012
at 04:14 AM

I wrap them in wet paper towel, nuke them 4 minutes, turn re-wet the towel and then another 2 minutes and test texture by squeezing-repeat until soft. They come out fine and then I slit them and slather them with wasabi butter! Delish combo of spicy and sweet.

78cb3c4f70de5db2adb52b6b9671894b

(5519)

on April 23, 2012
at 04:15 AM

wasabi butter...wow, that sounds so good!

1133603ea602c6824da56e8b596c9754

(614)

on April 23, 2012
at 08:24 PM

Wasabi butter does sound good. Do you make it yourself?

0
3c6b4eed18dc57f746755b698426e7c8

on April 22, 2012
at 08:31 PM

I would wash first, then boil until tender, which could be quite a while. Unpeel - they come off easily. I don't put anything on yams or sweet potatoes, like butter, cinnamon, stevia, etc. They're sweet enough by themselves.

1133603ea602c6824da56e8b596c9754

(614)

on April 23, 2012
at 08:25 PM

definitely sweet enough, but I like butter! Thanks

0
Dd80cc6deaa3045fd02954f9e74a8b74

on April 22, 2012
at 05:36 PM

I would peel them, boil them and mash them with butter

0
2fd566cefde2de38e75e1bc13a966e16

on April 22, 2012
at 05:27 PM

I don't do Japanese sweet potatoes, but for the regular ones I find wrapping them in a damp paper towel before putting them in the microwave makes them come out much better. Have you tried this with the Japanese varieties?

I also leave the skin on with this method.

1133603ea602c6824da56e8b596c9754

(614)

on April 22, 2012
at 08:09 PM

This is what I was doing already, but thanks!

0
Medium avatar

on April 22, 2012
at 03:17 PM

I like to grate them. Saute in butter to coat . And bake in oven (convection if available).

1133603ea602c6824da56e8b596c9754

(614)

on April 23, 2012
at 08:26 PM

Like potato hash! Yum!

Medium avatar

on April 25, 2012
at 12:16 PM

Yes! Add bacon as you see fit :) Last night I steamed one until very soft and mashed it with half a stick of kerrygold (unsalted) which I had melted with cinnamon. It was like Thanksgiving .

0
C90eecdd76cf57a387095fa49de23807

(960)

on April 22, 2012
at 03:15 PM

Holy crap they're my favorite too!

I always cook them whole in their skins in the microwave. I find there's a lovely sweet spot between hard and dry, between 5 and 8 minutes of cooking depending on how big the sweet potato is and how strong my microwave. Usually I just pull them out every few minutes to check.

In any case, the best success I've had is with the skin on. I'd also recommend boiling or steaming them if you're worried about them being too dry.

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