These Blueberry Muffins with crumb topping will become your favorite easy (and make ahead) breakfast! These are truly the best blueberry muffins with juicy, tart blueberry bites in a soft, delicately sweet vanilla muffin topped with a crispy, buttery streusel topping.
06Spoon into a lined muffin tin, filling about ⅔ of the way full. Set aside.
07To the reserved cup of flour mixture, add brown sugar and whisk to combine. Cut in remaining butter. Sprinkle topping onto unbaked muffins (you may not use all of it)
08Bake in a 350° oven for 20-30 minutes. I start checking them at 20 minutes, and continue every 5 minutes or so until I can pull a toothpick out clean.