there are a few different species of Russula;
Rússula vésca is simply edible.
Russula emetika looks 100% like Russula Sanguinea (red) but its toxic and unedible, and Sanguinea is edible... they are hard to identify, thats true. we'd rather pick up the ones with pale yellow and brown caps, and dont take red ones..

for me, russula is better to be fried with potatoes.. my wife simply put them to the soupie. depends on how much we have got' em each time.