Coffee Cake Muffins are soft, fluffy muffins topped with a sweet, buttery cinnamon crumb topping and a simple vanilla glaze. They are perfect for breakfast, brunch, or a sweet treat and can be ready in less than 30 minutes!
Preheat oven to 375 degrees (F). Spray muffin pan with non-stick spray or line with muffin liners. Set aside.
In a medium bowl combine the buttermilk, eggs, melted butter, greek yogurt, and vanilla. Whisk to combine.
In a medium bowl, combine flour, brown sugar, cinnamon, baking powder, baking soda, and salt. Whisk until free of lumps.
Gently mix the wet and dry ingredients until just combined.
For Crumble:
Combine all of the ingredients for the crumble in a small bowl and use clean hands or a fork to combine. The texture should be sandy and crumbly with both large and small chunks.
For Muffins:
Line a muffin pan with muffin liners. Fill the prepared muffin pan about ¾ of the way with the cinnamon muffin batter.
Sprinkle the crumble mixture over the muffin batter.
Place the muffins in the oven and bake for 15-17 minutes or until a toothpick inserted in the center of a muffin comes out with only a few moist crumbs. Remove the muffins from the oven and allow to cool.
For Icing:
Combine all of the icing ingredients in a small bowl and whisk until smooth.
Drizzle the vanilla icing over the cooled muffins.
Notes
Don’t use cold ingredients. Ensure that all of your cold ingredients are at room temperature before making your muffins. The ingredients will combine much easier and you won’t have chunks of cold butter in your batter, which can lead to greasy muffins.
The provided nutrition information is an estimate, the calorie accuracy is not guaranteed.