Preheat oven in line with brownie package deal directions.
Whisk collectively the sugar, corn syrup, eggs, butter, and vanilla in a small saucepan. Place on the range prime over medium excessive warmth and start to prepare dinner, stirring repeatedly.
Combine brownies in line with package deal directions.
Pour brownie batter right into a greased 13×9 inch pan and place in oven to bake for 20 minutes. * see word about cooking time beneath
Because the brownies bake the filling within the saucepan ought to have thicken sufficient to coat your spoon (about quarter-hour). Stir the pecans into the combination and proceed to prepare dinner for 2-3 minutes till the combination reaches the consistency of runny oatmeal. You need it to be unfastened sufficient to pour over the brownies however not liquid.
When the brownies have completed pre-baking take away them from the oven and pour the pecan pie filling over them spreading it out to cowl the brownies utterly.
Place them again within the oven and bake for 25-Half-hour or till the filling solely jiggles barely within the center once you transfer the pan.
Let cool to room temperature earlier than reducing.