First, wash ur 16 cups of rice very well and sock it for like 3-4 hours,

Cook d other rice to b very soft n allow it to cool,

After socking n d other has cool down, u now mix it together drain d water out n put a little yeast n blend it, do not put lot of water,

After blending everything, u can add ur yeast n turn it well,

Cover it well n put it under d sun or in a warm place n allow it rise,

When it rise u'll see it like bubbles, so u can use ur hand or turning stick n turn it,

Add ur sugar, baking powder, scotch bonnet (diced), little potash, salt n onions make sure you diced d onions

And finally ur masa pan, put on fire on low heat, put ur oil in which pan circle, put ur blended mixture, when d side is golden brown u turn d other.

That how masa is made as easy as dt, u can either eat wt vegetables sauce, honey, pepper or sugar.try it