Whiskey cocktail using both dry and sweet vermouth (CC subtitles)

This is a recipe for making a cocktail called Kensington based on bourbon whiskey. It takes a lot of ingredients to make at home, but if you have the ingredients, I hope you make it.
Kensington Cocktail Recipe
- 60 ml of bourbon whiskey
-Dry vermouth 15ml
-Sweet vermouth 15ml
- 2 dashes of peychaud's bitters
- 1tsp orange marmalade
- orange twist
#cocktail
#bourbonwhiskey
#sweetvermouth