01 - In a medium saucepan, combine grape juice, sugar, cinnamon stick, star anise, cloves, vanilla bean or extract, and orange zest. Bring to a gentle simmer over medium heat, stirring until sugar dissolves completely.
02 - Carefully add pear halves to the poaching liquid, ensuring they are mostly submerged. Add a small amount of water if necessary to cover. Simmer gently for 20-25 minutes, turning occasionally, until tender but not falling apart.
03 - Remove pears with a slotted spoon and set aside. Increase heat to medium-high and reduce poaching liquid for 5-10 minutes until slightly thickened and syrupy. Discard spices and orange zest.
04 - Return pears to the warm syrup or arrange on serving plates. Drizzle generously with reduced syrup. Garnish with fresh mint leaves and add whipped cream or vanilla ice cream if desired.