Donat Labu Panggang

Bahan-bahan (17 porsi)

• 1/2 cup vegetable oil
• 3 large eggs (room temperature)
• 1 1/2 cup granulated sugar
• 1 1/2 cup pumpkin puree
• 1 1/2 teaspoon ground cinnamon
• 1/4 teaspoon ground nutmeg
• 3/4 teaspoon ground ginger
• 1 3/4 teaspoon salt
• 1 1/2 teaspoon baking powder
• 2 cups all-purpose flour
• 4 tablespoons unsalted butter
• 2 cup powdered sugar
• 1 teaspoon vanilla
• 3 -4 tablespoons milk (or more if needed)