Preheat the oven to 450°F and place the muffin pan in at the same time.
In a bowl whisk the eggs together.
Add the milk, flour, salt and pepper and whisk until smooth.
Once the oven has reached temperature, take the muffin pan out and quickly and generously brush 8 spaces in the muffin pan with melted butter.
Fill the spaces ¾ full with the batter.
Place the pan back into the oven and bake at 450°F for 17 minutes then turn the temperature down to 350°F.
Bake for a further 10 minutes and the popovers are golden and puffed up.
Serve at once or follow the reheat instructions above.