01 -
Heat your oven to 325 degrees.
02 -
Line a 9x13 inch baking pan with parchment paper. This makes it super easy to remove the brownies later.
03 -
In a medium saucepan, combine the granulated sugar, brown sugar, cornstarch, corn syrup, melted butter, salt, and beaten eggs. Stir everything together constantly over medium heat and bring it to a boil.
04 -
As soon as it starts boiling, take the pan off the heat. Stir in the chopped pecans and vanilla extract, making sure everything is evenly mixed. Pour the mixture into a bowl and let it cool on the counter for about 10 minutes, then pop it in the fridge for 1 hour to set up properly.
05 -
While the topping is chilling, make the brownie base. In a large bowl, use a hand mixer to blend together the brownie mix, water, oil, and eggs until the batter is smooth and consistent.
06 -
Pour the brownie batter into your prepared pan and spread it out evenly. Bake for 44 to 47 minutes until the brownies are fully baked but still have that fudgy center. Don't overbake them.
07 -
Once the brownies are done baking, let them cool in the pan until they're comfortable to touch. Carefully lift the whole brownie slab out using the parchment paper and transfer it to a cookie sheet.
08 -
Take your chilled pecan pie topping out of the fridge and spread it evenly over the top of the cooled brownies.
09 -
Cut the brownies into squares and enjoy! These are seriously good.