Perfect pan-cakes

Ingredients

• 1 ½ cups all-purpose flour
• 2 teaspoons baking powder
• 1 teaspoon baking soda
• 1 teaspoon salt
• 1 tablespoon white sugar
• 1 cup milk
• 1/4 cup plain yogurt 
• 1 egg
• 3 tablespoons butter, melted

Preparation