2tablespoonsunsalted butter, melted and cooled slightly
Instructions
Preheat oven to 425 F.
Place all of the ingredients in a bowl and whisk to combine. Allow mixture to come to room temperature while oven preheats. This helps with creating a light and fluffy popover.
Grease each popover tin with cooking spray or butter and fill 3/4 of the way up with batter.
Bake for 35 minutes and do not open the oven door while cooking.