These pumpkin muffins were made for the perfect first bite—crumbly streusel topping with a melted cream cheese morsel right in the center. No butter spread necessary.
Check baking powder expiration dates: Old powder prevents batter from rising correctly.
Have all ingredients at room temperature for best blending. For example, ice-cold milk will harden melted butter and keep it from blending evenly.
Don't overmix the batter—it's okay if it's a little lumpy when it goes into the muffin liners. Stirring flour and liquids too much can create tunnels in the batter, which makes the final product tough. Add wet ingredients to dry, mixing just until moistened.