I used Crown Royal but any even marginally decent Canadian whisky will do. Best to use a high-quality maple syrup (if you care enough about cocktails to...
This was delicious! It keeps true to its “Old Fashioned” origins but ramps it up with the maple and walnut. One note, I used bottled in bond bourbon not Canadian whiskey. Maybe the stronger whiskey prevents the maple syrup from overpowering the drink?
Mark Killorin