Rhubarb Prosecco Sparkler

INGREDIENTS

1 1/2 cups

sugar

1 1/2 cups

water

1/2

-inch piece fresh ginger, peeled and diced

1 tbsp

black peppercorns

Zest of ½ a lime, cut into strips

1/2

a vanilla bean (split lengthwise)

2 cups

diced rhubarb, cut into ¼-inch cubes

3/4 tsp

spiced rum

1 oz

spiced rhubarb syrup (above)

Crushed ice

5 oz

prosecco per serving

Thinly sliced rhubarb, for garnish