Line your pan with parchment paper for easy removal. Slightly underbake the brownies before adding the pecan topping so they don’t overcook. Let the brownies cool completely before slicing to help the layers set cleanly.
Ingredients
1 box brownie mix (plus ingredients listed on the box) or your favorite homemade brownie batter
1 cup light corn syrup
1 cup brown sugar, packed
4 tablespoons unsalted butter
3 large eggs
1 teaspoon vanilla extract
1/2 teaspoon salt
2 cups chopped pecans
Directions
Preheat oven to 350°F. Prepare brownie batter according to package instructions or your homemade recipe. Pour into a greased or parchment-lined 9×13-inch pan and bake for 20 minutes (you want them slightly underbaked).
While brownies bake, combine corn syrup, brown sugar, and butter in a saucepan over medium heat. Stir until butter is melted and sugar is dissolved. Remove from heat and let cool slightly. Whisk in eggs, vanilla, and salt, then stir in chopped pecans.
Carefully pour pecan mixture over the partially baked brownies. Spread evenly and return to the oven for 25–30 minutes, or until the topping is set and golden.
Let cool completely in the pan before slicing.
For variations, try adding chocolate chips to the brownie layer or a splash of bourbon to the pecan mixture for a deeper flavor. You can also drizzle with melted chocolate or caramel after baking for an extra decadent touch.