Kue Es Oatmeal

Bahan-bahan (24 porsi)

• 2 cups old fashioned oats
• 2 ½ cups all purpose flour
• 1 teaspoon soda kue
• 1 teaspoon baking powder
• ½ teaspoon garam
• 1 ½ teaspoon kayu manis bubuk
• ½ teaspoon pala bubuk
• 1 cup mentega tawar
• 1 cup dark brown sugar (packed)
• ½ cup gula pasir
• 2 large telur
• 1 ½ tablespoon tetes
• 1 ½ teaspoon ekstrak vanila
• 2 -3 tablespoons milk (more as needed)
• 2 cups gula bubuk