A boulevardier is a whiskey or Rye negroni. It's 2 parts whiskey

1 part sweet vermouth

1 part camapari

Stirred and served in a martini glass with an orange peele expression.

Or maybe a Black Manhattan?

2 oz Bourbon or Rye

1 oz Averna

2 dash Angostura bitters

2 dash Angostura orange bitters

Stirred served in a martini glass 🍸

With a luxardo cherry skewered as a garnish

I can make a short video as a tutorial of either if you would like.