Add flour, cornstarch, salt, and baking powder to Mix n Blend II blender jar. Secure lid and press "Pulse" 3–5 times to sift dry ingredients. Add oil and milk to jar and secure lid. Select "Batter."
Preheat oven to 375°F. Grease a medium-sized, shallow pan, and spread ½-inch thick layer of batter in pan. Bake until slightly golden, approximately 25 minutes.
Meanwhile, boil corn syrup in pot until corn syrup forms thread; stir until creamy. When bread is almost baked, cover with corn syrup, sprinkle with nuts, and finish baking. Let cool and then cut into squares.