Easy Chai Spice Donuts

Bahan-bahan (8 porsi)

• 1 and 1/2 cups (300g) granulated sugar
• 2 teaspoons ground cinnamon
• 1 teaspoon ground ginger
• 1 teaspoon ground cardamom
• 1/2 teaspoon ground allspice
• 1 cup (125g) all-purpose flour (spooned & leveled)
• 1 teaspoon baking powder
• 1/4 teaspoon baking soda
• 1/2 teaspoon salt
• 1/2 cup (8 Tbsp; 113g) unsalted butter, melted and slightly cooled (divided)
• 1 large egg*
• 1/4 cup (60g) sour cream*
• 1/4 cup (60ml) milk*
• 1 teaspoon pure vanilla extract