sorry hoshi5, I dun really come to this thread, so only saw yr query now. however, u can see my ans to your query in my reply to ixwong.
yes, blend after e porridge is cooked. I will normally minced e meat(except fish), cook it with the porridge n then blend them together. The porridge is always till piping hot after blending as it takes less than a min to blend them thoroughly.
I dun blend e porridge and fish now as my girl is already 13mths+, I only blend the meat. Only blend them again when she's sick lor.
Dun cook both of yr child's lunch & dinner meal at one go as porridge will cause 'wind' when kept for a longer timing, even if it's still warm when u're eating it. So not so good for young kids', especially bbs' immature digestive system.
I will cook my girl's lunch n dinner porridge separately(even when we're gg out).