The Abandoned Gold Beneath The Soil

I grow a tumeric plant in a pot sharing with kesum plants. I wanted to use the tumeric leaves in my cooking but i tak sempat. And it suddenly dried up and turned into brown color @_@. 

I ignored this dried up tumeric plant for about a month. And yesterday i cleaned up the pot because i wanna grow ginger. Out of my expectation, there are tumeric roots grow beneath the soil! 

The plant look small for me but the roots do develop well. Good job! Frankly, i do nothing for this tumeric plant except watering. 

The problem is how should i use it in my cooking? i have never use it in my cooking. Beside masak lemak and fry fish, suggest me a recipe please?