Melt the butter and distribute the butter evenly to the bottom of the areas you're about to bake in - to the bottom of a pie pan, cake pan, or cupcake liners.
You can add some non-cooked fruit to the bottom of the pan if you wish, if you have some extra pieces that you didn't cook. I do this if cooking in a cake or pie pan, pan versus making cupcakes/muffins.Pour the batter on top of the melted butter. The butter will show on the sides. That's that you want to see. Spoon the cooked fruit onto the top of the batter.
Spoon-over about 1/4 cup cup of the reserved nectar, to the top of the laid-over fruit and batter. A cobbler baked in a pie or cake pan, will take close to and hour to bake. I recommend to begin checking the center for how baked it is (with a pick) at 50 minutes and go from there. Every oven is a little different.
This recipe yields about 18 cupcakes/muffins. Because of the melted butter at the bottom, you cannot use paper liners. You can use no liners for your pan, or aluminum liners. After placing the batter and fruit, spoon about two teaspoons of the reserved nectar onto the top of each. They will bake for about 20 minutes. Check the oven at about 16 and it may take about 22 minutes, depending on your oven.
Allow to cool.
Offer with vanilla ice cream and reduce the nectar for a syrup on top. I share my fruit-based reduction/syrup recipe in a separate post.
If you have leftovers from a cobbler that has been baked in a cake or pie pan, you can leave them out at room temperature for one day, in a covered container. Because of the moisture-level from the fruit involved with this recipe, I recommend refrigerating after the first day.