Heat a 2-quart sauce pot over medium-high heat. Melt the coconut oil, then add the onion, cook until translucent, about 2 minutes. Reduce the heat to medium, stir in the rice and cook for an additional 2 minutes. This toasts the rice and gives it a wonderful nutty flavor. Pour in the white wine and allow it to reduce by half before adding 12 ounces of stock. Stir often and allow the rice to absorb most of the liquid before adding more. Continue cooking the rice, adding the liquid in 4-ounce increments and remembering to stir often.