When you pair decadent dark chocolate with a chewy, delectable brown sugar layer these dark chocolate ganache brown sugar bars are born.

brown sugar bar with a dark chocolate layer on a white plate

These may seem like fairly unassuming little treats, but let me assure you that these delectable morsels left me nearly speechless.

I could tolerate (and quite possibly enjoy) eating anything filled with dark chocolate ganache, but when you actually pair the succulent, creamy, decadent dark chocolate with something as enticing as a brown sugar bar layer – well, I could agree to eat it every day for the rest of my life and never tire of it.

As much as my life tends to revolve around dark chocolate, I must admit that the real star of this dessert is the brown sugar layer. I have never tasted a chewier more delectable brown sugar bar.

Loaded with dark brown sugar, these bars are beyond description.

A tinge of butterscotch flavor combined with extreme buttery chewiness makes the partnership between the bars and the chocolate completely fantastical.

Make Ahead Tip: These bars can be made up to two days in advance and stored in the refrigerator.

light brown bar with a dark chocolate middle layer on a white plate

Dark Chocolate Ganache Filled Brown Sugar Bars

Yield: 32 small bars
Prep Time: 25 minutes
Cook Time: 20 minutes
Additional Time: 2 hours 30 minutes
Total Time: 3 hours 15 minutes


  • 1 ¾ cups all-purpose flour
  • ¼ teaspoon salt
  • 1 cup (2 sticks) butter, softened to room temperature
  • 1 ¾ cups packed dark brown sugar
  • 2 large eggs at room temperature
  • 1 ½ teaspoons pure vanilla extract
  • ½ cup heavy cream
  • 8 ounces semisweet chocolate, finely chopped


  1. Preheat the oven to 350 degrees.
  2. Spray the bottom of a 10 by 15-inch baking sheet (jelly roll size pan) with cooking spray or lightly coat with butter. Line the pan with wax paper and then butter and lightly flour the paper and sides of the pan.
  3. Whisk together the flour and salt in a small bowl. Beat the butter and sugar together in a large bowl until light and fluffy. Beat in the eggs one at a time, beating well after each addition. Beat in the vanilla. Reduce the mixer speed to low and add the flour mixture in 3 batches, beating just until well blended. The batter will be fairly stiff.
  4. Spread the batter evenly in the pan. Bake for 18 to 20 minutes until a wooden toothpick comes out clean but not dry; do not overbake. Transfer to a wire rack to cool completely.
  5. Bring the cream just to a boil in a small saucepan over medium heat. Place the finely chopped chocolate in a medium bowl. Pour the hot cream over the finely chopped chocolate and stir gently to combine until the mixture is smooth and creamy. Let the ganache stand at room temp for 20-30 minutes to set. It should be spreadable but not runny.
  6. Invert the brown sugar cake again onto a large cutting board. Cut the cake crosswise in half with a long serrated knife (just like you would cut a sandwich in half to share with someone – NOT like you would cut a cake into two layers, the bars are too thin for that). Spread the ganache evenly on one half of the cake to within 1/8 inch of the edges. Carefully set the other cake half on the top, matching the cut edges. Cover and refrigerate until the ganache is set, at least 2 hours or up to 2 days.
  7. To serve, trim the uncut edges of the cake. Cut the cake lengthwise into 4 strips then cut each strip into 8 rectangles. Serve chilled or at room temperature.

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Recipe Source: adapted from Luscious Chocolate Desserts