The Velveteen Ruby

Velveteen Ruby
Photo and recipe credit: @sashadallasgirl

2 oz of your favorite aged rum
1/4 oz velvet falernum syrup
1/2 oz Grapefruit Vanilla Shrub 
1/2 oz lime juice
2 dashes lime bitters
Garnish: dehydrated grapefruit wheel

Shake with ice and strain.