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Home » Desserts

Killer Symphony Brownies

Updated: Sep 4, 2025 · Published: Aug 3, 2024 by Misty Tannery · This post may contain affiliate links · Leave a Comment

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Have you ever bitten into a brownie so rich, fudgy, and irresistible that you couldn’t stop dreaming about it? That’s exactly what you get with these Killer Symphony Brownies! These decadent brownies are made with Hershey’s Symphony candy bars, which melt right into the batter to create layers of creamy chocolate goodness. I first discovered this recipe back in 2007, and from that moment on, it became one of my all-time favorite chocolate dessert recipes. I don’t bake them often—but when I do, it’s only because I can’t get them out of my mind. Once you try them, you’ll understand why they’re completely unforgettable!

A stack of three rich, fudgy brownies with a shiny chocolate top and dense texture.
Stacked high and full of fudgy goodness—these brownies are chocolate lover’s dream!

If you are needing another fudgy brownie try my Fudgy Iced Brownies!

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  • Tips
  • Other Desserts to try

Ingredients

Killer Symphony Brownies Ingredients
Killer Symphony Brownies Ingredients
  • 2 boxes fudge brownie box mixes
  • ingredients for boxed brownies
  • chocolate chips
  • XL Symphony Bars with almonds and toffee

See recipe card for quantities.

Instructions

This recipe could not be simpler! Mix up your brownie mixes adding in the chocolate chips. In a greased 9x13 add half of the brownie batter. Add a layer of the all 3 Symphony bars. I personally like to break mine into large pieces and lay it out like a mosaic. Some like to lay the entire bar down. I just find the candy bars are more evenly distributed when broken. Then add the rest of the batter. BAKE! See?! Could not be easier!

Storage

These store for 3-4 days in an airtight container. If they last that long! If you don't have a 9x13 with a lid...it's a must in my kitchen! Try this one.

Tips

Cutting your brownies with a plastic knife actually helps them cut more uniformly. Give it a try!

I also like to cut smaller squares as these are rich. So they feed a crowd.

Killer Symphony Brownies
Killer Symphony Brownies

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    Texas Sheet Cake
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    Fudgy Iced Brownies
  • Slice of fudge pie with pecans, served on a white plate
    Fudge Pie with Pecans

A stack of three rich, fudgy brownies with a shiny chocolate top and dense texture.
Print Recipe

Killer Symphony Brownies

Thick brownies with the middle bursting with chocolatey symphony candy bars
Prep Time10 minutes mins
Cook Time40 minutes mins
Total Time50 minutes mins
Course: Dessert
Cuisine: American
Keyword: brownies, chocolate, dessert, fudgy brownies, thick brownies
Servings: 20
Calories: 89kcal
Author: Misty Tannery

Ingredients

  • 2 boxes favorite brownie mix fudge brownies for 9x13 works great
  • ½ cup chocolate chips
  • Ingredients on box for brownies
  • 3 XL Symphony Bars with almond and toffee 4.25 oz each

Instructions

  • Grease 9x13 pan and preheat oven to temperature on back of box.
    Mix up brownie mixes according to box. Stir in chocolate chips.
    Add half of batter to 9x13 dish.
    Break candy bars apart and place on top of batter.
    Then add rest of batter and smooth out.
    Bake 5 minutes longer than what is called for on the box. 

Nutrition

Calories: 89kcal | Carbohydrates: 3g | Protein: 1g | Fat: 8g | Saturated Fat: 2g | Polyunsaturated Fat: 2g | Monounsaturated Fat: 4g | Trans Fat: 0.03g | Cholesterol: 33mg | Sodium: 14mg | Potassium: 38mg | Fiber: 0.4g | Sugar: 2g | Vitamin A: 50IU | Calcium: 8mg | Iron: 0.4mg

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Misty Tannery-Learned it from My Mom Profile

Thank you for being here! I’m a home cook and food blogger sharing easy, delicious recipes made with love—just like my mom taught me! From quick weeknight dinners to sweet Southern desserts, I post new recipes daily to keep your kitchen inspired. Follow for family favorites, holiday treats, and everyday meals you’ll actually want to make!

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