[header] How to make matcha blondies [title] Preheat the oven and prepare the pan. [step] Turn on the oven to 350 degrees f (175 c). Get out a 9x13-inch (23x33-cm) baking pan and spray it with baking spray. 
Cut a large sheet of parchment paper and place it in the greased pan. You may need to cut slits in the corners so the paper fits snugly.