Best Pancakes I've Ever Made

Bahan-bahan (18 porsi)

• 1/2 cup butter (1 stick, melted and cooled)
• 2 & 1/2 cups flour (spooned and leveled)
• 1/4 cup white sugar
• 1 teaspoon salt
• 2 teaspoons baking soda (see note)
• 2 teaspoons baking powder (see note)
• 2 cups buttermilk
• 1/2 cup milk (I used whole milk)
• 2 eggs (separated)
• bacon grease (for frying (butter works too))