The apples, which can be refrigerated for a week, are delicious on any pancake or waffle. If desired, make the crêpes and apples up to 2 days ahead of time.
Prepare:
Set aside. Combine in a small saucepan:
Simmer over medium heat until the mixture is reduced by half, about 10 minutes. Stir in:
Continue to simmer until the apples are tender and the syrup is very thick, about 15 minutes.
Preheat the oven to 350°F. Line a large baking sheet with parchment paper.
Have ready:
Brush the crêpes lightly with the butter and arrange on the prepared baking sheet, overlapping as necessary. Bake until warmed through, about 5 minutes. Fill the crêpes with the apples and sauce. If desired, top with: