Using low quality or expired ingredients
Making cupcakes is occasionally an impulsive choice. Even if you're just making cupcakes for yourself out of boredom, try to use high-quality ingredients rather than ones that are outdated or inexpensive. You may be in this situation: you're reading a recipe that calls for some fancy-sounding flour, but you already have all-purpose flour in your cupboard, so you assume you're good to go.
However, utilizing better-quality ingredients does improve the flavor of your cupcakes if you have the resources to do so, particularly when it comes to things like vanilla, butter, chocolate, and flour. Since lower-quality ingredients have a tendency to lose flavor over time, using these can give cupcakes a more robust (and superior) flavor. Flour that has recently expired or is older can lose some of its baking effectiveness, changing the texture of your finished product. However, you should throw away any expired flour, eggs, milk, or other ingredients and go shopping instead.