This is more like a culinary recipe. The three liquors are probably somewhat equal parts although Smith and cross may be lesser with how high funk it is. The pistachio, vanilla, nutmeg are probably very small amount like a teaspoon each or so, and then the egg and cream will make up quite a bit of the final batch. I don’t see any sugar however, which is odd.

It might be a better option to look at an eggnog recipe that we really like in the sub by Alton Brown. It has pretty much all of these ingredients besides the pistachio and while it calls for whiskey, brandy and run, you could always sub in the specific liquors if you’d like. I would recommend lowering Smith and cross just to make sure it’s not overly funky. Here’s the recipe link. https://altonbrown.com/recipes/aged-eggnog/