There are some things in life that just rock your world and these Snickerdoodle Blondie Brownies are one of them! Use a 9x9 metal baking dish for optimum results. A glass dish does NOT retain heat as well and will take longer to bake
In a large bowl or stand mixer, combine the melted butter and brown sugar and mix with a wooden spoon or paddle attachment for 1 minute until combined. Add the vanilla and eggs, making sure to scrape down the sides of the bowl, and mix until fully incorporated.
Add the dry ingredients into the bowl/stand mixer, flour, baking powder, cinnamon and baking soda and slowly mix until just combined. The batter will be a bit stiff, but that's normal.
Spray a 9x9 baking pan with baking spray and line it with parchment paper. Spoon the batter into the prepared baking sheet and sprinkle the cinnamon sugar on top and transfer it into the oven. Bake for 30-35 minutes. Once the blondie brownies have baked, remove them from the oven and let cool for at least 2 hours before cutting and serving.
Notes
These are best made in a square pan. If you want to double for more brownies, then make them in two pans.