1. Preheat oven to 350 degrees Fahrenheit. Line a real eight-inch square pan with Gefen Parchment Paper.
2. In a bowl, mix 3/4 cup oil, brown sugar, eggs, and vanilla using a whisk or wooden spoon. Add flour, baking soda, and 1/2 teaspoon cinnamon and mix.
3. Pour into pan.
4. In a bowl, combine sugar, two teaspoons cinnamon, and two tablespoons oil.
5. Swirl the cinnamon mixture into the blondies.
6. Bake for 35–40 minutes. (Note: When the blondies come out, they will seem raw in the center. This is normal; they will firm up as they cool.)
7. In a bowl, mix frosting ingredients using a fork or whisk. Spread over blondies.
