With their vibrant colors and lacy frills, dainty, crisp-crusted French macarons are the perfect Valentine's Day baking project. But these lovely little delicacies are temperamental enough to stump even the most accomplished chefs. Even if you follow a detailed recipe down to the letter, a batch of macarons can go very wrong very quickly. Thanks to humidity, an unreliable oven temperature gauge, or an overly enthusiastic stirring hand, you may find yourself facing macaron-ageddon rather than baking bliss. But before you throw in the tea towel, we've assembled a few tips to solve your sugary conundrums.