Preheat oven to 350. Line 12 muffin cups with paper liners.
Mix dry ingredients together
Mix wet ingredients in a second bowl
Add wet mixture to dry mixture, mix together to form a smooth batter
Fill each lined muffin cups 3/4 full
Prepare the crumb topping.
Combine crumb ingredients in a small bowl.
First mixing with a spoon then by hand to create a crumble
Top each muffin top with crumb topping
Bake for 22-25 minutes