When you want a dense, chewy blondie with a sophisticated twist, Chocolate Chunk Tahini Blondies are an absolute dream. Sesame tahini replaces a portion of the traditional butter, introducing a subtle, nutty depth reminiscent of halva while producing an impossibly fudgy center studded with pools of melted dark chocolate.
The secret to a fudgy blondie with a glossy, papery crinkle top is Whisking Warm Butter and Tahini with Brown Sugar and Eggs for 2 Full Minutes. Emulsifying the sugars and fats before folding in the dry ingredients creates a tight protein structure that yields a crackly top and a dense, chewy interior that never turns cakey.
Why You’ll Love These Blondies
- Nutty Halva-Like Depth: Middle Eastern tahini adds a rich, savory nutty contrast to sweet brown sugar.
- Fudgy & Chewy Crumb: Dense, melt-in-your-mouth texture with crisp edges and a shiny, paper-thin crust.
- Naturally Nut-Free: Provides all the rich depth of peanut butter or almond blondies without tree nuts.
- Puddles of Dark Chocolate: Bittersweet chocolate chunks melt into dramatic pools throughout the squares.
Key Ingredients Overview
- Runny Sesame Tahini: Well-stirred pure sesame paste adds natural fat, moisture, and savory nuttiness.
- Brown Sugar & Melted Butter: Dark or light brown sugar locks in moisture for a chewy caramel flavor.
- Bittersweet Dark Chocolate (60%–70%): Chopped chocolate bars melt into silky pockets better than chips.
- Toasted Sesame Seeds & Flaky Sea Salt: Sprinkled over top for texture, visual contrast, and a salty finish.
Step-by-Step Instructions
1.The Butter, Tahini & Sugar Whisk:5 min.
Preheat your oven to $175^\circ\text{C}$ ($350^\circ\text{F}$) and line an 8×8-inch baking dish with parchment paper, leaving an overhang on the sides. In a large bowl, whisk ½ cup (1 stick) melted unsalted butter, ½ cup well-stirred runny tahini, 1 cup packed brown sugar, and ¼ cup granulated white sugar vigorously for 1 to 2 minutes until glossy and combined.
2.The Egg & Vanilla Emulsion:3 min.
Add 2 large room-temperature eggs and 1½ teaspoons vanilla extract to the warm tahini mixture. Whisk vigorously for another full minute until the batter turns pale, thick, and smooth.
3.The Dry Fold & Chocolate Chunks:2 min.
Sift 1 cup all-purpose flour, ½ teaspoon baking powder, and ½ teaspoon fine salt into the bowl. Gently fold with a rubber spatula just until no dry flour streaks remain. Fold in 1 cup roughly chopped dark chocolate chunks (reserve a few pieces for the top).
4.The Golden Bake & Sesame Topping:25 min.
Spread the thick batter into the prepared pan. Scatter the remaining dark chocolate chunks, 1 tablespoon sesame seeds (white and/or black), and ½ teaspoon flaky sea salt over top. Bake at $175^\circ\text{C}$ ($350^\circ\text{F}$) for 22 to 26 minutes until the edges are golden and set, but the center still has a slight wobble.
5.The Cool, Chill & Slice:10 min.
Cool completely in the pan on a wire rack for at least 1 hour (chill in the fridge for 30 minutes for extra-fudgy clean cuts). Use the parchment paper to lift out and slice into 16 fudgy squares.

Expert Tips for Success
- Stir Your Tahini Well: Sesame oil naturally separates in the jar. Always stir your tahini thoroughly before measuring so you get a smooth, pourable paste rather than dry paste from the bottom!
- Use Chopped Chocolate Bars: Chocolate chips contain stabilizers that keep them firm. Chopping a dark chocolate bar creates melted pools of chocolate that stay soft even after cooling.
- Do Not Over-Bake: Pull the pan when a toothpick inserted in the center comes out with moist, fudgy crumbs (not wet batter). Over-baking will turn these dense blondies into dry cake!
The Recipe Card
- Prep Time: 15 mins
- Bake Time: 25 mins
- Total Time: 40 mins
- Yield: 16 Square Blondies
Ingredients:
- The Tahini Wet Base: ½ cup (1 stick) Unsalted Butter (melted), ½ cup Sesame Tahini (well-stirred), 1 cup Light or Dark Brown Sugar (packed), ¼ cup Granulated White Sugar, 2 Large Eggs (room temp), 1½ tsp Vanilla Extract.
- The Dry Mix: 1 cup All-Purpose Flour, ½ tsp Baking Powder, ½ tsp Fine Salt.
- The Toppings & Mix-Ins: 1 cup Dark Chocolate Chunks (chopped bar, 60%–70% cacao), 1 tbsp Toasted Sesame Seeds, ½ tsp Flaky Sea Salt (Maldon).
Instructions:
Whisk melted butter, tahini, brown sugar, and white sugar until smooth. Add eggs and vanilla; whisk vigorously for 1 minute until pale and thickened. Sift in flour, baking powder, and salt; fold until combined, then fold in most chocolate chunks. Spread into a parchment-lined 8×8-inch pan. Top with remaining chocolate chunks, sesame seeds, and flaky sea salt. Bake at $175^\circ\text{C}$ ($350^\circ\text{F}$) for 22–26 minutes. Cool completely before slicing into 16 fudgy squares.