In a bowl whisk together the eggs and milk. Add the flour, salt and sugar and whisk to blend in well. Whisk in the melted butter. Grease 2 mini muffin pans well or 1 popover mold. Fill cups half full with batter. Bake at 450 degrees for 10 minutes then turn the oven down to 350 degrees and bake for another 10 to15 minutes till until puffed and golden brown. They will be hollow in the center.
Peach Butter: In a small saucepan, bring the peaches, orange juice and sugar to a boil. Turn down the heat and continue cooking until the peaches are tender and cooked down to a jam-like consistency. Let cool. In a bowl, using a wooden spoon, blend the butter with the cooked peaches, making a "compound" butter. Chill in a ceramic pot till ready to use and soften slightly when serving.