Actually, there are conflicting studies on the issue,there was a large meta-analysis that found no significant link between risk of heart disease and consumption of saturated fat. It's trans fats, not saturated ones, that have been conclusively proven to be bad for the heart, so you're better eating butter than partially-hydrogenated vegetable fats (though I believe that methods of hydrogenation that avoid the formation of trans fats have been developed). Also, you appear not to have noticed that this has nothing to do with cannabis whatsoever (apart from the fact that you're probably stoned).
And yes, it is damn tasty. I can't live without roux.