Add butter, diced apples, brown sugar, and cinnamon to a medium saucepan. Stir the mixture over medium heat for about 3-5 minutes, or until the apples are very tender.
In a separate measuring cup, combine your maple syrup and elderberry syrup.
Scoop the apple mixture onto warm pancakes, then top with the elderberry-maple syrup. This recipe makes three servings, and the apples and syrup will keep well in the fridge for a few days if you decide to save some for later.