Gluten Free Flour - Sweet Potato Flour - we show you how to make your own nutritious flour with a dehydrator and food processor.
A few weeks ago we discovered sweet potato flour and noodles in a Chinese supermarket in our nearest city. I got to wondering if it would be possible to make our own flour.
Having made flour from seeds and tapioca I figured it would not be impossible, but obviously a little more labour intensive as the sweet potatoes would need drying out first.
Then I remembered the dehydrator that was sat gathering dust in the back of a cupboard!
You don't actually need any gadgets to create this flour, an oven or even the sun if you have plenty of that (we don't!) would work as well as the dehydrator, and a pestle and mortar can be used to grind the dried pieces into flour. Of course this will be a little more time consuming and labour intensive, but you could get into the spirit of your primal ancestors and make a meditation out of the work, if you were that way inclined!
A few of our readers like pictorial instructions so I have decided to have a go at going through the steps for certain recipes picture by picture. I hope you find this useful - I'm keeping the picture sizes small in order to reduce page loading time - if you have any problems, or comments please don't hesitate to get in touch via the contact form at the bottom of the page.
1. Peel your sweet potatoes - unless you are using organic or home grown potatoes, in which case just give them a good wash and leave the skins on as they contain lots of goodness.
3. Spread the sweet potato slices out across your dehydrator sheets, try not to overlap them as this will mean they take longer to dry.
2. Using a mandolin or sharp knife, thinly slice your sweet potatoes. My mandolin has thin, medium or thick settings. The thinner the potato the quicker it will dry out.
4. Check your sweet potato slices periodically - when they look like this and break clean in half with no bending, then they are ready. My dehydrator isn't the best and a batch of 4 large potatoes took roughly 6 hours to dry.
5. Mill your sweet potato pieces until they are a fine powder. I used my very small (and cheap) magic bullet nut grinder, which has a tendency to overheat so if you can afford it I would definitely recommend investing in a good quality machine like a vitamix. Alternative of course you could use a simple pestle and mortar to grind the sweet potato flour, it probably won't take as long as you think and will be a great mini workout!
4kg of sweet potatoes will yield approximately 1 kg of sweet potato flour.
6. Store in an airtight container and enjoy cooking and baking with this wonderfully nutritious paleo, gluten free flour !