Dense, caramel-hued, and decadent, Fudgy Tahini Dark Chocolate Blondies offer a sophisticated twist on classic blondies. Ground sesame tahini brings an earthy, halved-halvah flavor that cuts through rich brown sugar, while poolings of bittersweet dark chocolate chunks deliver a fudgy melt in every bite.
The secret to achieving a chewy, fudge-like center without cakeiness is Whisking Warm Melted Butter and Tahini Directly with Dark Brown Sugar to Dissolve the Granules, then Skimping on Flour. Tahini provides healthy fats and natural emulsifiers that keep the crumb ultra-moist, while a top swirl of raw tahini bakes into a gorgeous, marble-like finish.
Why You’ll Love These Chewy Blondies
- Rich Nutty Umami: Earthy sesame tahini balances deep brown sugar caramel notes perfectly.
- Fudgy, Non-Cakey Crumb: Uses a low ratio of flour to fat for an ultra-dense, chewy texture.
- Naturally Nut-Free: Delivers a rich, butter-like nuttiness using sesame seeds instead of tree nuts or peanuts.
- One-Bowl Easy: Quick batter that comes together in under 10 minutes with zero electric mixers required.
Key Ingredients Overview
- Fat & Sesame Base: ½ cup (1 stick) unsalted butter (melted) and ½ cup smooth, well-stirred tahini (plus 2 tbsp for swirling).
- Sugars: ¾ cup packed dark brown sugar and ¼ cup granulated white sugar.
- Eggs & Aromatics: 2 large eggs (room temperature), 1 teaspoon vanilla extract, and ½ teaspoon almond extract (optional).
- Dry Base: 1 cup all-purpose flour, ½ teaspoon baking powder, and ½ teaspoon fine sea salt.
- Add-ins & Finishers: 1 cup bittersweet dark chocolate chunks (70% cocoa) or chips, 1 tablespoon toasted sesame seeds, and 1 teaspoon flaky sea salt.
Step-by-Step Instructions
1.Whisk Wet Ingredients & Sugars:3 min.
Preheat oven to 350°F (175°C) and line an 8×8-inch baking pan with parchment paper. In a large bowl, whisk melted butter, ½ cup tahini, dark brown sugar, and granulated sugar vigorously for 1 to 2 minutes until glossy and smooth.
2.Incorporate Eggs & Flavorings:2 min.
Whisk in the room-temperature eggs one at a time, followed by vanilla extract and almond extract, until the batter turns thick and pale.
3.Fold Dry Ingredients & Dark Chocolate:2 min.
Add all-purpose flour, baking powder, and fine sea salt. Fold gently with a rubber spatula just until combined. Gently fold in ¾ cup of the dark chocolate chunks, reserving the remaining ¼ cup for the top.
4.Swirl Tahini & Top:2 min.
Spread batter evenly into the parchment-lined pan. Dollop the remaining 2 tablespoons of tahini over the surface and drag a toothpick or butter knife through to create marble swirls. Press reserved chocolate chunks and toasted sesame seeds into the top.
5.Bake, Rest & Slice:22-25 min.
Bake at 350°F (175°C) for 22 to 25 minutes until the edges are golden and set, but the center still has a subtle jiggle. Sprinkle flaky sea salt immediately upon removal. Cool completely in the pan before slicing into 16 fudgy squares!

Expert Tips for Success
- Stir Your Tahini Thoroughly: Sesame oil separates naturally in the jar. Stir the tahini thoroughly before measuring so the batter gets an even balance of oil and sesame paste.
- Don’t Overbake for Maximum Fudginess: Pull the pan when a toothpick inserted into the center comes out with moist, sticky crumbs rather than clean wood.
- Chill for Clean, Dense Slices: Like brownies, these blondies set as they cool. Pop the pan in the fridge for 30 minutes before slicing for razor-sharp edges.
The Recipe Card
- Prep Time: 10 mins
- Cook Time: 25 mins
- Total Time: 35 mins
- Yield: 16 Blondie Squares
Ingredients:
- ½ cup Unsalted Butter (melted) & ½ cup + 2 tbsp Smooth Tahini
- ¾ cup Dark Brown Sugar & ¼ cup Granulated Sugar
- 2 Large Eggs & 1 tsp Vanilla Extract
- 1 cup All-Purpose Flour, ½ tsp Baking Powder & ½ tsp Fine Sea Salt
- 1 cup Bittersweet Dark Chocolate Chunks
- 1 tbsp Toasted Sesame Seeds & 1 tsp Flaky Sea Salt
Instructions:
Preheat oven to 350°F (175°C). Whisk melted butter, ½ cup tahini, brown sugar, and white sugar in a bowl until smooth. Whisk in eggs and vanilla. Fold in flour, baking powder, and fine sea salt, then stir in ¾ cup dark chocolate chunks. Spread into lined 8×8 pan, swirl remaining 2 tbsp tahini on top, and scatter remaining chocolate and sesame seeds. Bake 22–25 minutes. Sprinkle with flaky sea salt, cool completely, and slice!