Preheat oven to 400˚F and set rack in the middle of oven.
Divide 2 tablespoons melted butter into 12-cup mini popover pan. Grease each cup with the butter.
Place the rest of the ingredients into a food processor or blender and process for 30 seconds. Set aside.
Place the popover pan with butter in oven for 1 minute. Do not walk away. Butter can get burnt if in the oven for too long. Carefully remove pan from oven. Quickly fill each cup with batter to about 1/3 to ½ full. Return to oven and bake for 20 - 22 minutes until deep golden brown.
Remove from oven. Pierce each popover on the top with a knife to allow steam to escape. Place the popovers on a serving plate. Serve immediately.