This is a hotly debated topic in the baking world. Cheesecake brownies do, after all include cream cheese. When it comes to these matcha cheesecake brownies I recommend storing them at room temperature for up to, but no longer than, two days. The sugar in the bake will help preserve the cheesecake swirl. I class myself as a risk taker when it comes to baking - meaning I am partial to raw cake batter. My mum always let me have the pleasure of scraping the bowl once we'd baked and it's a delight I've never grown out of. I'm a true 1970s kid - I'm so out there! However, those with concerns about the safety of storing cheesecake brownies at room temperature for any length of time should feel free to stash them in the fridge from the outset. Just ensure that you bring them to room temperature before serving.