01 - 
                Preheat oven to 350°F. Lightly grease 9x13-inch baking pan with cooking spray.
              
              
              
                02 - 
                Whisk eggs, sugar, milk, vegetable oil and vanilla until combined.
              
              
              
                03 - 
                Add flour, baking powder and salt, whisk until combined.
              
              
              
                04 - 
                Combine brown sugar, cinnamon, cold butter and flour. Use hands to pinch butter into mixture until crumbly.
              
              
              
                05 - 
                Pour half batter in pan, sprinkle 1/3 topping. Add remaining batter and top with remaining topping.
              
              
              
                06 - 
                Bake 40-50 minutes until toothpick comes out clean. Serve warm or cooled.