Candied Sweet Potatoes

Bahan-bahan (8 porsi)

• 5 -6 medium sweet potatoes (3-4 lbs)
• 1/2 teaspoon salt
• 1/2 cup (8 Tbsp; 113g) unsalted butter
• 1 Tablespoon (15ml) water
• 1/4 cup (60ml) pure maple syrup
• 1 cup (200g) packed light or dark brown sugar
• 3/4 teaspoon ground cinnamon
• 1/2 teaspoon ground nutmeg
• 1/2 teaspoon ground ginger
• 1 teaspoon pure vanilla extract
• optional: 2 teaspoons orange zest
• optional for garnish: chopped fresh or dried rosemary, flaky sea salt