Can you use frozen blueberries for this recipe?

Yes, I should think so. Measure them after defrosting and draining them well; I would add about 1 teaspoon of corn starch to the cooked berries make sure they thicken up properly. I'd also add only 3-4 tablespoons of water to the berries in the saucepan. In my experience, frozen fruit, once defrosted, throws off a lot of liquid. ;o)