Citrus Cherry Brandy Punch

2 oz Pineapple Juice
1 oz Tart Cherry Siren Shrub
1 oz Lime Juice
Optional: 2 oz Brandy

Combine all ingredients into shaker with ice. Shake aggressively for 5 seconds. Strain into a tumbler with ice. Top with seltzer water and finely grate fresh nutmeg for garnish.