Preheat your oven to 375°F. It’s essential to get your oven nice and hot so the danish puffs up perfectly.
Line a large cookie sheet with parchment paper or a silicone baking mat. This will prevent sticking and make cleanup a breeze.
Unroll the crescent rolls onto the parchment paper. Gently press the seams together to seal them, creating one continuous sheet of dough.
Using a knife, cut 2-inch slits 1-inch apart up and down both sides of the dough. This creates the braiding effect later.
Spread the blueberry pie filling down the center of the dough, letting that rich filling shine through.
Now, it’s time to wrap up the slit pieces of dough like a braid or mummy. Fold them over the filling, alternating sides.
Brush the top of the danish with a bit of egg white. This will give it a beautiful golden color once baked.
Bake for 23 to 28 minutes, or until the top is golden brown. Keep an eye on it to ensure it doesn’t overbake.
Once baked, let it cool for a bit before glazing. To make the glaze, whisk together the powdered sugar with vanilla extract and heavy whipping cream until smooth.
Drizzle the glaze over the danish, slice it to serve, and enjoy! You can store leftovers in an airtight container in the fridge for up to two days.
If you’re feeling adventurous, prep the entire danish the night before, store it in the refrigerator, and bake it fresh the next morning!