Batangan Zucchini dengan Frosting Mentega Coklat

Bahan-bahan (24 porsi)

• 1 ½ cups gula pasir
• 1 cup minyak sayur
• 3 large telur
• 2 cups all-purpose flour
• 1 teaspoon baking powder
• 1/2 teaspoon garam
• 1 ½ teaspoons kayu manis bubuk
• 2 cups shredded zucchini (about 3 medium)
• 1 ½ cups pecans (chopped)
• 6 tablespoons mentega
• 6 cups gula bubuk
• 1 teaspoon vanila
• 8 to 10 tablespoons milk