Is it possible to resume baking brownies the day after?

I was making brownies late last night and left it in for twenty minutes. Took the brownies out and left them on the oven top. I was going to test them for being done, but became otherwise occupied and simply forgot (but I did remember to cover it, so they're quite moist today). When I went to have one tonight I found that it's slightly under done-- it might need another 5 minutes in the oven. But I'm unsure if that's safe or if that will ruin the brownies.
Best Answer
It's unlikely to work very well. The outside, which is already cooked, would come up to oven temperature almost immediately. Then you have to wait for the inside to get hot enough to cook, by which time the outside is burnt.
I suggest you might be better off cutting them first (assuming you baked them in a tray) then cooking a little more before serving warm. This means less far for the heat to penetrate, but also gives you the chance to check whether they're just underdone or actually uncooked. That's not easy to test with a skewer, especially with something that's meant to be moist. The difference is that raw or even worse slight warmed brownie mix doesn't keep at room temperature overnight while cooked brownies do (for several days). You'd only be using doneness as a proxy for temperature but it's a good one in this case.
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Can you put brownies back in the oven if they are not done?
1. In the Oven. To fix undercooked brownies in the oven, simply resume baking your brownies in the same tray it was baked in. If you discover that it's too gooey after having removed it from the tray, you can still place it on a regular baking tray and heat it some more in the oven preheated to 350\xb0F.Can you put undercooked brownies in the fridge?
If you want a method that doesn't involve any cooking or heating, did you know that you can actually just put your brownies into the fridge or freezer? This won't cook the brownies any further but it will help firm them up if they are just slightly undercooked. Now, if your brownies are runny, this might not work well.Can I make brownie batter and bake later?
After spreading the batter in a pan, refrigerate it for at least an hour or up to overnight. The end result will be brownies with extra-crisp edges and a moist, fudge-y center.How do you fix a failed brownie?
Problem #1 \u2013 Brownies Underbaked in the Middle Since the edges are done, cut them off. If the leftover middle section is on the larger side, cut it in half and scoot the two pieces apart. Put it back in the oven to finish baking.The Biggest Mistakes Everyone Makes When Baking Brownies
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Answer 2
Yeah you can. Two stage cooking isn't that big of a deal. You'll have to pick up around where you left off while accounting for the time it takes the food to heat up. So for brownies that need about 5 more minutes in the oven, get the oven heated to the right temperature while letting your brownies come to room temperature. Then pop them in the oven for 2 minutes. After that take the brownies out and check them for done-ness. If they're not done then just put them back in for a time and check them again.
The biggest issues with two stage cooking is over cooking your food and not cooking it in the right environment so make sure you cook them in the same environment as you did the first time and take extra care not to over cook anything.
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