FREE SHIPPING on all orders over $75

Giant Chocolate Blueberry Poptart featuring Endangered Species Chocolate 88% Dark Chocolate

giant chocolate blueberry poptart

Original recipe & images: @joshisbaking 

Looking for a way to upgrade this year’s birthday cake? You’ve got to try this flaky, indulgent, Giant Chocolate Blueberry Pop Tart! This recipe utilizes store-bought puff pastry to save you even more time. You can make this show-stopping treat with minimal ingredients and effort. Score!

The chocolate filling is rich and fudgy, with only 4 ingredients needed to make it! The blueberry glaze (made with preserves) pairs perfectly with the chocolate and the color comes out so vibrant. Then there’s that flaky, buttery pastry, which truly brings it all together.

Don’t forget to add our Extreme Dark 88% Dark Chocolate bar to your cart! You can find it on chocolatebar.com or at most retailers near you. Happy Baking!


Giant Chocolate Blueberry Poptart featuring Endangered Species Chocolate 88% Dark Chocolate

giant chocolate blueberry pop tart

Yields: 1 large (10x14in) Pop Tart

Total time: 2 hrs 15 min


Chocolate Filling:

  • 1/3 cup granulated sugar (75g)
  • 1/2 cup whole milk (60ml)
  • (2) 3oz. bars of  Endangered Species 88% Dark Chocolate (85g each, 170g total), coarsely chopped
  • 1/4 cup salted butter (60g), cut into tablespoons


  • 2 sheets of store-bought puff pastry (490g)
  • 1 large egg for egg wash (50g)
  • Small amount of all-purpose flour for rolling out puff pastry

Blueberry Glaze:

  • 2 cups powdered sugar, sifted (230g)
  • 3 Tablespoons blueberry preserves (60g)
  • 3 Tablespoons whole milk (45g)

Giant Chocolate Blueberry Poptart featuring Endangered Species Chocolate 88% Dark Chocolate Giant Chocolate Blueberry Poptart featuring Endangered Species Chocolate 88% Dark Chocolate


(Don’t start with your puff pastry thawed—make the chocolate filling and then let your puff pastry thaw while the filling cools down and thickens!)

Make the Chocolate Filling First:

  1. In a medium heatproof bowl add your sugar, milk, and half of your chopped chocolate (so 1 bar). Set it over a small pot of simmering water (make sure the bottom of the bowl doesn’t touch the water). Heat and gently stir with a spatula until the chocolate has melted and the mixture is mostly smooth.
  2. Take off the heat, immediately add your butter and other 1/2 of chocolate chips. Stir until both butter and chocolate have melted and mixture is smooth. Pour into a separate bowl and set aside at room temp to cool for 45 min—take your puff pastry sheets out now to thaw while it does.

Assembling the Giant Pop Tart:

  1. Once thawed, roll each puff pastry sheet out on at a time on a lightly floured surface into large 10x14in rectangles. Trim edges for clean lines. Place them on a large baking sheet, separated by parchment paper, cover your bowl with the chocolate filling with plastic wrap (so the plastic touches the surface of the chocolate) and chill everything in the fridge for 15 minutes. Whisk together an egg in a small bowl for an egg wash while they chill.
  2. Take your puff pastry and chocolate filling out of the fridge. Keep one pastry on the tray and the other off to the side. Brush egg wash around the outside border of the pastry on your tray (~2 inches). Take your chocolate filling out and spread it into an even layer, leaving the border untouched.
  3. Lay your other pastry sheet overtop, press down around the edges with your fingers to seal, and then crimp with a fork to further help seal. Brush the entire pop tart generously with your egg wash and poke holes (10-12) all over the top to let steam escape during the bake. Place back in the fridge to chill while you preheat the oven to 400°F (200°C).
  4. Then, bake at 400°F (200°C) for 25-30 minutes or until dark golden all over. Rotate your tray halfway through for a more even back. Take out of the oven, let cool for 15-20 minutes on tray, and then carefully transfer to a separate rack to cool completely.
  5. Once cooled completely (can take up to an hour), whisk together all of your glaze ingredients until smooth and pour/spread/drizzle overtop.

Cut into slices to serve or let folks cut as they please—best enjoyed same day, otherwise store in an airtight container at room temperature for a few days!


Giant Chocolate Blueberry Poptart featuring Endangered Species Chocolate 88% Dark Chocolate


  • Chocolate Filling Harden? If you leave the chocolate filling in the fridge too long, it’ll thicken up too much and potentially harden, so keep an eye on those 15 minutes. If it happens though—don’t fret! Just microwave it for 5-10 seconds (you shouldn’t need more) and then give it a good stir to smooth things out. You want to be able to easily spread it, but not have it oozing (a technical term, yes) all over the place.
  • Pastry Hard to Handle? Puff pastry has a high butter content, so the more you handle it or leave it out, the stickier it becomes. If in doubt or if things get messy, chill it in the fridge for 15 minutes. I recommend chilling it right before you bake it anyways for maximum puffage and flakiness!
  • Bake Time: I baked mine with a rack in the upper thirds position and 25-30 minutes was always the sweet spot for me. With that said, every oven is different, so just keep an eye on things as you near the 25 minute mark. Also, the more egg wash you brush on, the quicker it’ll darken.

Enjoy! If you make this recipe, be sure to post it to your social media and tag us @eschocolate on IG and @EndangeredSpeciesChocolate on FB!




chocolate strawberry buttermilk pancakes

Sometimes breakfast just needs to be a little fancier, or a little more fun, or in this case both! Five of our favorite brands came together to help us make...

S'mores Cheesecake Bars featuring Endangered Species Chocolate 48% Milk Chocolate

s’mores cheesecake bars

Original recipe, words & images: Ginny Dyer (@inbloombakery) Delicious, nostalgic and oh-so-summery, these S'mores Cheesecake Bars are your next favorite recipe! They have a thick, buttery graham cracker crust and...

Berry Bundt Cake featuring Endangered Species Chocolate Raspberry Filling + 60% Dark Chocolate Bar

berry bundt cake

Recipe developed by Alyssa Adams, @floralapronblog The 4th of July is a day of celebration, filled with joy, patriotism, and, of course, delicious food. Whether you're hosting a backyard barbecue...