No other food beats the sweet potato porridge to soothe an upset tummy. After suffering one week of discomfort, I got Wuan to cook some porridge for me to cleanse my system. She got one Japanese sweet potato and one Okinawan sweet potato when she went to the market. The Japanese variety has yellow flesh while the Okinawan variety purple.
Purple sweet potato porridge.
What I did not expect was the Okinawan sweet potato turning the porridge purple as well. The sight of the unusual looking porridge put me off initially. I had also half-expected it to be awful. Not wanting to let it go to waste, I decided to try a mouthful anyway. Fortunately, it tasted just like regular sweet potato porridge. That notwithstanding, I shall use only sweet potatoes that do not change the colour of the porridge from now on.