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1
Preheat oven to 325 degrees F (165 degrees C).
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2
Pour water, star anise, and cloves into the bottom of a roasting pan. Place a roasting rack into the pan over the water, anise, and cloves; place ham on rack. Cut 1/4-inch deep slashes 1/2-inch apart lengthwise and crosswise across the top of the entire ham.
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3
Bake ham in the preheated oven for 20 minutes. Whisk brown sugar, honey, mustard, vinegar, black pepper, Worcestershire sauce, and cayenne pepper together in a bowl until glaze has a thick, smooth consistency.
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4
Brush glaze all over ham. Continue baking ham, brushing glaze on every 20 minutes, until glaze is deep golden and ham is heated through, about 2 hours 10 minutes. An instant-read thermometer inserted into the center should read 130 degrees F (54 degrees C).
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5
Use a kitchen torch to heat the glaze on the ham until it is crispy and caramelized, 2 to 5 minutes.
