Bars & Brownies

Molten Lava Brownies

March 8, 2019

A thick and fudgy molten lava brownie topped off with a swoosh of chocolate buttercream and a dash of flakey […]

A thick and fudgy molten lava brownie topped off with a swoosh of chocolate buttercream and a dash of flakey sea salt. These brownies are so extra in the very best way!


Living with two teenagers and a third teeny-bopper bringing up the rear may as well require a crash course in adolescent lingo. The way they rattle off their slang for this, that and the other thing makes my head spin. {Kids these days.} I’ll jump on any chance to embarrass my children which is typically followed by an exaggerated eye roll and a very long and drawn out “Moommmm!!!”.  Good stuff.  So once in a while I’ll throw out a few choice slang words I’ve caught on to like “basic” {means exactly what you think…boring}, “gooch” {translates to, “great!”} and my reigning favorite, “that’s so extra”. Being called extra is not generally a good thing as it’s usually a descriptor of someone or something that is trying too hard {hashtag, over the top}.


Guessing you aren’t here for a lesson in 2019 teenage slang words but I do have a point to this narrative. These MOLTEN LAVA BROWNIES riiigghttt here. Yep, you’re lookin at ’em and I’m hoping you are having a hard time taking your eyes off of them. This is one thick and fudgy brownie, stuffed with a molten lava chocolate spread and topped off with a generous swoosh of rich chocolate buttercream. Oh, and a sprinkle of flakey sea salt for good measure. This is one EXTRA brownie if you ask me.  And extra in this instance is aaallll good! Make no mistake about it, this chocolate lover’s brownie is so over the top. One bite and you may never have a “basic” brownie ever again.


I originally developed this recipe for Bumbleberry Farms as they were looking for a decadent chocolate dessert that featured their Molten Lava Chocolate Honey Cream Spread. It should be noted that their molten lava spread happens to be swoon-worthy all by itself straight out of the jar. Let’s be real…anything with the word “molten” in it HAS to be good. Words to live by. I loved these brownies so much that I couldn’t wait to share the recipe with you here on the blog. I can’t think of a better way to kick off Fri-yay!! 

I hope you give these Molten Lava Brownies a try and if you make this recipe, or any other sweet treat from the blog, be sure to tag @brownedbutterblondie on Instagram. I love seeing what you are baking up in your kitchen. And don’t forget to follow along on Pinterest for all the latest recipe details straight from the blog.

Happy Baking!


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Molten Lava Brownies

  • Author: Browned Butter Blondie
  • Prep Time: 15 mins
  • Cook Time: 30 mins
  • Total Time: 45 mins
  • Yield: 12 1x
  • Category: Dessert


A thick and fudgy molten lava brownie topped off with a swoosh of chocolate buttercream and a dash of flakey sea salt. These brownies are so extra in the very best way!



For Brownies

  • 14 TBSP unsalted butter, room temperature
  • 4 ounces bittersweet chocolate chips
  • 4 ounces dark or semisweet chocolate chips
  • 1 1/4 cups light brown sugar, packed
  • 3 eggs, room temperature
  • 1 tsp baking powder
  • 1 1/2 cups plus 2 TBSP all purpose flour
  • 1/3 cup Dutch process cocoa powder
  • 1/2 tsp salt
  • 1 jar Molten Lava Chocolate Honey Spread from Bumbleberry Farms (may substitute 1/2 cup Nutella)

For Chocolate Buttercream

  • 6 TBSP unsalted butter, room temperature
  • 2 1/2 cups confectioner’s sugar, sifted
  • 3/4 cup unsweetened cocoa powder
  • 1/3 cup whole milk
  • 1 1/2 tsp vanilla
  • 1/4 tsp salt


For Brownies

  1. Preheat oven to 350 degrees.
  2. Grease and line a 9 x 9 ” square baking pan with parchment paper, covering the bottom and sides.
  3. Over a double boiler, melt together chocolate chips and butter until smooth.
  4. Remove from heat and set aside to cool slightly.
  5. In the bowl of an electric mixer, mix together eggs, brown sugar, and vanilla on medium speed.
  6. Once combined add the melted chocolate and mix on medium-high for 1-2 minutes.
  7. Meanwhile, in a large bowl, sift together flour, baking powder, cocoa powder and salt. Stir to combine.
  8. Add the flour mixture to the chocolate and egg mixture and stir with a wooden spoon until well blended. Do not over mix.
  9. Measure out half the batter and pour into prepared pan. Use an offset spatula to smooth the top so it’s level.
  10. Add most of the jar of molten lava honey spread to the top of the brownie batter and use spatula to smooth evenly.
  11. Add remaining brownie batter and smooth again.
  12. Bake about 30 minutes or until a toothpick inserted two inches from the side of the pan comes out clean.
  13. Allow to cool completely before frosting the brownies.

For Chocolate Buttercream

  1. In the bowl of a stand mixer fitted with a paddle attachment, cream the butter for 2-3 minutes until light and fluffy.
  2. With the mixer on low, add the confectioner’s sugar and cocoa powder and mix until combined.
  3. Increase speed to high and mix 3-4 minutes until light and fluffy.
  4. Add vanilla, whole milk and salt.
  5. Mix on low and then increase speed to high and whip for one minute.
  6. Add more milk if frosting is too thick.


If you do not have Molten Lava Spread from Bumbleberry Farms, replace with 1/2 cup of regular nutella spread.
Store left over brownies in a cool, dry place. Best enjoyed within a day or two of baking.

Visit www.bumbleberryfarms.com to order online or to find a retailer near you. 

  • Reply
    July 15, 2020 at 3:02 pm

    Hello, when you say preheat oven to 350 degree, does it mean celcius? Thank you

    • Reply
      Heather Mubarak
      July 16, 2020 at 4:49 am

      Fahrenheit. 🙂

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