5 Mistakes to Avoid When Making & Baking Biscuits. Like anything purported as easy, biscuits are also notoriously easy to mess up. Simplicity, as it turns out, leaves plenty of room for error. Luckily I have quite a few biscuit makers to call on to discuss the common mistakes people make and the tips you need to avoid them all together. Great baking tips and ideas for beginner or experienced bakers trying out new recipes!