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Chocolate Explosion (Boston Pizza Copycat)

written by Ashley Fehr

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4.88 from 8 votes
Prep Time 1 hour
Total Time 1 hour 25 minutes
Servings 12

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Last updated on June 4, 2020

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Sometimes you just need a mountain of chocolate! This Chocolate Explosion has rich chocolate mousse piled high on an Oreo crust, filled with chunks of vanilla cheesecake, Oreos, nuts, toffee bits — truly indulgent!

tall image of whole chocolate explosion topped with almonds crushed oreos and toffee bits

(*avoids eye contact*)

Yeah….. so… I like chocolate.

I feel like this is an embarrassing amount of chocolate, but even so — I’m not sorry about it. This is one of those things you make on a special occasion.

Correction: this is one of those things you should only make on a special occasion, but you’re bound to be finding a lot more “special occasions” with this in your back pocket.

slice of chocolate explosion cake on white plate with visible cheesecake chunks

American friends: do you know the Chocolate Explosion from Boston Pizza?

All this time, I thought Boston Pizza was a Canadian and American thing, but when I went to do my research for this post, I found only “Boston’s” in the U.S., which seemed to be the American version, but when I checked out their menu, they had only boring, ordinary desserts like “Apple Crisp”.

As much as I love apple crisp, it is no match for the Boston Pizza Chocolate Explosion. And you shouldn’t have to live without it.

whole chocolate explosion with one piece cut out on white cake plate

I was really debating doing this on a brownie crust, and while that would be amazing, I felt it was a little more effort than I was willing to put in, especially since there are a few parts to the dessert to begin with.

Also, when I looked at the Boston Pizza menu I noticed in the pictures that the cheesecake was baked on a chocolate crust. But I figured that was also too much effort, considering it’s smothered in chocolate mousse and those 8 Oreo crumbs you’re going to get aren’t really going to make it taste any different.

square image of chocolate explosion slice on white plate with oreos almonds and toffee bits

If you want to make this even easier (and no bake!) simply skip the baking of the crust (I baked mine because I like how it holds up nicely), and use a plain, store-bought vanilla cheesecake. No one will know the difference and you will still be the star of the show at the holiday gathering/birthday party/staff lunchroom.

Pinky promise.

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Chocolate Explosion (Boston Pizza Copycat)

written by Ashley Fehr

4.88 from 8 votes
Sometimes you just need a mountain of chocolate! This Chocolate Explosion has rich chocolate mousse piled high on an Oreo crust, filled with chunks of vanilla cheesecake, Oreos, nuts, toffee bits — truly indulgent!
Review
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Prep Time 1 hour
Cook Time 25 minutes
Total Time 1 hour 25 minutes
Cuisine American
Course Dessert
Servings 12
Calories 650cal

Ingredients

Cheesecake

  • 16 oz cream cheese (I used light) 2 packages
  • 1/2 cup sugar
  • 1 teaspoon vanilla
  • 2 eggs

Crust

  • 3 tablespoons butter melted
  • 300 gram package Oreos (about 22 cookies)

Mousse

  • 3 cups heavy whipping cream
  • 300 g finely chopped chocolate just over 10 oz
  • 2 packages unflavored gelatin
  • 1/2 cup cold water
  • 1/3 cup powdered icing sugar
  • 6 Oreos crushed

Garnish

  • slivered toasted almonds
  • toffee bits
  • crushed Oreos

Instructions

  • Cheesecake:Preheat the oven to 350 degrees F and line an 8×8″ pan with tin foil or parchment paper.
  • Beat the cream cheese until smooth. Add in sugar, vanilla and eggs and beat until smooth.
  • Spread into prepared pan and bake for 23-25 minutes, until top is just set (may still have a slight jiggle to it, but will look dry on top). Remove from the oven and let cool to room temperature before covering and refrigerating until cold.
  • CrustIn a food processor, combine butter and 300g Oreo cookies and process until smooth.
  • Press firmly into the bottom and 1″ up the sides of a 9″ Springform pan (or another 9″ pan — a pie plate would work!). Set aside (refrigerate if overnight).
  • Mousse:In a large bowl, melt together cream and chocolate in a microwave (start with 1 minute on high, then do 30 second intervals until melted, stirring each time). Place in the refrigerator until completely chilled (the cream won’t whip unless it is very cold! Be patient).
  • In a small bowl, sprinkle gelatin over cold water and let sit 1 minute. Microwave on high for 15-20 seconds and whisk until gelatin dissolves. Set aside to cool to room temperature.
  • Whip cream until soft peaks form, add in the sugar and gelatin gradually, whipping until stiff peaks form.
  • Fold in crushed Oreos and chopped cheesecake and spread into crust. Garnish with almonds, toffee bits, and Oreos as desired. Refrigerate at least 5-6 hours or overnight, until chilled and totally set.

Notes

This dessert is most easily made over the course of 2-3 days, which means it’s great for making ahead! Make the cheesecake one day, because it needs to be cold. You could also melt the chocolate and whipping cream this day because it needs to be completely chilled to whip. Then make the crust, mousse and finish the dessert on the second day, and chill for a few hours or overnight. Of course, you can always speed this up by cubing and chilling the cheesecake in the freezer!

Nutrition Information

Calories: 650cal | Carbohydrates: 53g | Protein: 11g | Fat: 46g | Saturated Fat: 26g | Cholesterol: 136mg | Sodium: 392mg | Potassium: 287mg | Fiber: 2g | Sugar: 39g | Vitamin A: 1210IU | Vitamin C: 0.3mg | Calcium: 115mg | Iron: 3.6mg

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Meet Ashley

My name is Ashley Fehr and I love creating easy meals my family loves. I also like to do things my way, which means improvising and breaking the rules when necessary. Here you will find creative twists on old favorites and some of my favorite family recipes, passed down from generations!

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Comments

  2. Sarah says

    Hi ! For the mouse do you use bittersweet chocolate or semi sweet chocolate ? I am trying this recipe for my husbands birthday and can’t wait to see how it turns it

    Reply

  3. Chocolate D-Splosion says

    Hi, I don’t own a microwave, can I just heat everything in a pot? 🙂
    Thanks this will save me many dollars by not getting the BP cake anymore

    Reply

  5. Susan Kurlek says

    I made this dessert today but have not tried it yet. Except for licking beaters etc. Lol!!
    Do you think it would freeze well?
    I think if I make it again I will freeze the cheesecake.
    Thanks.
    Susan
    Bayfield, Ontario Canada

    Reply

    • Ashley Fehr says

      Hi Susan! I think it could be frozen, but I would probably serve it partially frozen after freezing as sometimes desserts like this are softer and don’t hold up as well once thawed

      Reply

  6. Evan B says

    Does the cake end up with a weird texture? Seems like alot of gelatin. I’m making it regardless, it looks amazing.

    Reply

  9. Kim says

    I made this today, and followed your recipe, but after whipping the chocolate and whipping cream until soft peaks formed, I slowly added the unflavoured gelatine and continued to beat, but never did reach stiff peaks, and the chocolate cream seemed to be really wet (I beat it forever and nothing changed) did I do something wrong?

    Reply

    • Ashley Fehr says

      If the gelatin mixture was quite hot then it may not have whipped properly (or if the room, bowl, or beaters are very warm then it may have had the same effect). Other than that I’m not sure what could have gone wrong!

      Reply

  10. Stacey says

    I plan on making this for my dads birthday on Sunday! We always get a chocolate expolision from Boston Pizza on one of our birthdays so I thought it would be fun to make! One question though, for the gelatin it says 2 packages, how many tablespoons is that? Thanks! (:

    Reply

  14. Kendra @ www.joyinourhome.com says

    When I saw this on your IG I immediately thought if the BP version…. I am officially requesting this as my birthday cake in December! I’ll let you know when we try it! Thx so much for sharing!

    Reply

  15. Cheyanne @ No Spoon Necessary says

    Holy moly, I HAVE to make this for my husband. Seriously, he loves chocolate as much as you do (an amount that should only be eaten in private to avoid strange stares), so I know he would flip his shhhh over this! I mean it’s called chocolate EXPLOSION and that says it all. You totally outdid yourself here, Ashley! PINNED! Cheers!

    Reply

    • Ashley Fehr says

      Lol! I do LOVE my chocolate but a whole Chocolate Explosion to myself would be a little much. Maybe I’m going soft?!? I don’t know what’s happening to me! Lol

      Reply

  17. Kelly says

    Oh my goodness, this is the ultimate dessert! We used to go to BP a lot back when we were dating and yours looks a bazillion times better! Love all the goodies you loaded it with!

    Reply

  19. Dorothy Dunton says

    Hi Ashley! This is definitely one indulgent dessert! We have Boston Market restaurants here and they feature mostly down home style cooking…fried chicken, mashed potatoes etc. and the food is really quite good. But they do not have any desserts like this!

    Reply

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