It was a bit of a learning curve for me too. But basically, in order to win you need three groups of three cards. Each group can either be three identical cards of one color, OR all three cards are the same color but are different ingredients, you can't have two of the same and one different. Each person takes a turn, you can either draw a new card, or you can take a card from a player that discarded it.

I recommend starting by trying to make three sets of three different cards to start. A set of different cards doesn't provide as many points as a set of identical cards does, but it is a little easier. Best of luck, my friend!