Where should you buy legitimate purple sweet potato?

In the winter time we often like to make ginger soup to keep us warm, one of the old time favourite – purple yam ginger sweet soup – is a very popular winter Chinese soup. You can make this with other sweet potato as well but I like it better with the purple colour!

These purple sweet potato makes a great natural food colouring in your dishes/dessert, you can bake and mash it to make a purple cream filling for cakes. They can be found in most of the Asian supermarket chain but I would prefer to purchase at any organic store instead.

Purple sweet potato from Asian chains are mostly from mainland China and there was one time that I took that China grown purple sweet potato to make this ginger soup, the purple sweet potato discoloured into white completely as it boils, and soon after that I have never purchased any of the China grown sweet potatoes and any veggies if I can avoid ever again.

This organic sweet potato is grown in the US and can be purchased at Whole Foods, notice the soup did turn purple yet the sweet potato pertains its colour. The ginger that I used was also organic ginger as well.

Organic purple sweet potato is about $2.99 per pound and the one I have purchased was about $2, boiled with about 1L of water and few pieces of ginger and some brown sugar makes a good portion for 4 guests to share.

|應該在哪裡買紫心蕃薯?|

寒風一到就會心思思煮一鍋驅寒蕃薯糖水,我最喜歡利用紫心蕃薯做,不過卻不能夠隨便選購紫心蕃薯啊!

我喜歡紫心蕃薯是因為其天然色素,可以烤完之後磨成蓉做蕃薯甜品而又不需要任何人造色素,只不過我曾經在華人超市購買過在中國種植的紫心蕃薯做糖水,那一鍋紫心蕃薯糖水在水滾後,蕃薯從原來的深紫色變成白色,之後就決定以後都會盡量避免購買任何中國種植的蔬菜。

這一次選購的有機紫心蕃薯於美國種植,購自Whole Foods,加上使用有機生薑,在經過煮滾後依然保留原有顏色。

這一種有機紫心蕃薯售價不算太貴,約$2.99一磅。我買的大約$2使用了大約1公升水來煮,足夠最少4人份量。

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