I haven’t tried it. You’d probably have to add a layer of butter and sugar along with the blueberries. They would be too dry without something to replace the pie filling.

I have not tried the puff pastry in this version – however I did try it with my original cruffins. It comes out crispier and I would say you need to bake for less time, and watch them a bit more closely. Think churro texture vs a doughy- cinnamon roll texture.