Ultra-fudgy brownies swirled with nutty, creamy tahini. Rich chocolate flavor, beautiful marbled tops, and a hint of flaky salt—an irresistible treat that’s easy to make in one bowl.
Preheat oven to 350°F. Line an 8-inch square pan with parchment, leaving overhang on two sides, and lightly grease.
Make the tahini swirl: In a small bowl whisk tahini, maple syrup, and warm water with a pinch of salt until smooth and pourable. Set aside.
In a large bowl whisk melted butter, granulated sugar, and brown sugar until glossy and combined.
Whisk in eggs one at a time, then vanilla, until the mixture is thick, smooth, and slightly lightened, about 0.5 to 1 minute.
Add flour, cocoa powder, and fine sea salt. Fold with a spatula just until no dry streaks remain.
Fold in chocolate chips, then spread the batter evenly in the prepared pan.
Dollop the tahini mixture over the batter. Use a butter knife or skewer to gently swirl, taking care not to overmix.
Bake 22 to 26 minutes, until the edges are set and a toothpick inserted in the center comes out with moist crumbs, not wet batter.
Sprinkle with flaky sea salt. Cool completely in the pan, then lift out using the parchment and slice into 16 squares.
Notes
For dairy-free brownies, swap butter with the same amount of neutral oil. For thicker swirls, omit the water in the tahini mixture. Store in an airtight container at room temperature for up to 3 days or freeze up to 2 months.