These cake box cookies from Eat At Home Cooks are the perfect treat for your valentine. You only need a strawberry cake mix, some pink lemonade and basic other ingredients you keep on-hand.
Here is another recipe for Rice Krispy treats from No Fuss Fabulous. This one has great picture instructions.
For those of you that love chocolate, The Recipe Girl has these chocolate-dipped brownies. They look delicious, and once again, easy.