Cook, stirring often, for about three minutes, just long enough to heat everything through.

Cook, stirring often, for about 3 minutes over high heat.

Cook, stirring for a few minutes, then add one cup of the stock.

Cover and cook, stirring once or twice, until they open, about 5 minutes.

Cover and cook, stirring once or twice, for 5 minutes.

Cook, stirring, for about 5 minutes and remove from heat.

Cook, stirring, until they turn bright red, about 5 minutes.

Cover and cook, stirring often, until soft, about 15 minutes.

Cook, stirring, until brown, about 5 minutes over medium heat.

Cook, stirring, for a couple of minutes, being careful not to let it brown.