According to the journal Prostaglandins, Leukotrienes and Essential Fatty Acids, cloves have the same anticoagulant action as aspirin. Cloves are a spice used in apple pie, pumpkin pie, and spiced ham and cider.
Aspirin reduces the risk of heart attack by keeping the platelets in your blood from binding together and forming a clot. It's not strong enough to keep your blood from clotting when you get a cut, but it does reduce the risk of blood clots forming in your vessels, which could cut off blood flow to the heart.
It turns out clove oil also keeps platelets from binding together.