Every time I make chicken and yellow rice it messes up. I boil a whole chicken and then debone it. I take two bags of family size yellow rice (vigo). I bring 10 cups of my chicken stock to a boil and then add my rice. I cook for a 1 min then add my chicken and cover. I turn the heat down to simmer (side note if it matters it's a gas stove) and cook for 35 min. The rice is always hard and mushy. WHAT AM I DOING WRONG? I have no problems with white rice but my husband loves the yellow. Any tips?