if you follow these simple tips.
After adding the liquid mixture to the flour mixture, stir just until moistened. If you stir until the batter is smooth, your muffins and quick breads will have a tough texture.
Be sure to bake muffin and quick-bread batter right away. Batters with baking powder and/or baking soda lose leavening power if the batter is not baked immediately.
To avoid soggy sides and bottoms, cool muffins and quick breads in baking pans only as long as directed in the recipe.