As we mentioned earlier, brownie mixes with eggs (and those without) will eventually go bad. This is because brownie batters often contain saturated fats that can spoil over time. Additionally, the baking soda used in brownie recipes will decompose if not stored properly. If you're wondering if your boxed brownie mix has spoiled, check the expiration date. Most boxed mixes will last 12-18 months when stored correctly.
Can you freeze brownies? The answer is also a resounding Yes! Preparing brownie batter ahead of time can also be accomplished via freezing. The best way to freeze brownie batter is by storing it in a plastic freezer bag or a disposable brownie pan. This will ensure that the mix stays fresh and is protected from freezer burn. When you're ready to bake your frozen brownie batter, allow them to return to room temperature before baking. But if you really want dense and fudgy brownies, baking the batter while its still frozen will result in brownies that are slightly more chewy and fudgy.
When making brownies, you can usually tell if something has gone wrong before baking them. Brownie batter that is grainy, separated, or greasy will likely result in a less than ideal brownie. If you notice that the ingredients of your brownies are separating as you mix the batter, try adding in an extra splash of liquid like milk to bring the mixture back together.
Though plain and traditional brownies taste great, you may want to spice things up every once in a while. If that's the case, we recommend stepping outside of your comfort zone by using creative add-ins like chocolate chips, nuts, seeds, and dried fruit. How about Paleo grain free brownies or marbled brownies with swirls of chocolate and vanilla or even a decadent cream cheese brown recipe? Choose to keep things sweet, or mix a bit of savory/salty flavors into your next brownie recipe. Or transform the dish altogether and use white chocolate instead. These Vanilla Brownies with Vanilla Glaze Frosting are the perfect example of a leveled-up brownie that guests are sure to rave about.