Preheat the oven to 350°F. Spray a 9x13-inch baking dish with cooking spray and set aside.
In a large bowl, whisk together the corn syrup, brown sugar, melted butter, eggs, and vanilla until smooth.
1 and ½ cups light corn syrup, ¾ cup brown sugar, ¼ cup butter, 3 large eggs, 2 teaspoons pure vanilla extract
Cut the biscuits into 8ths and add to the bowl along with the pecans.
2 - 6-ounce cans Pillsbury Grands biscuits, 1 and ½ cups pecans
Gently fold everything together so the pecans and biscuits are coated in the sauce.
Pour into the prepared baking dish.
Bake for 45-50 minutes, until golden brown on top and bubbly along the edges. The center will still be slightly jiggly. If you find it browning too fast, tent it with foil.
Allow to cool at room temperature on a wire rack for 20 minutes. This will help the filling set up.
After 20 minutes, make the glaze by whisking together the powdered sugar and milk in a small down.
½ cup powdered sugar (aka confectioners), 1 tablespoon heavy whipping cream