****Last four ingredients on list are for the crumb topping
Preheat oven to 400 Fahrenheit
Combine your flour, sugar, salt and baking powder in a medium sized bowl.
Place vegetable oil into a 1 cup measuring cup; add the egg and enough milk to fill the cup.
Mix oil mixture with flour mixture. It looks like someone woofed their cookies hahaha
This is what the mixture should look like after its mixed together
Fold in blueberries
Empty batter into muffin liners.
I like to fill mine to the top I only made 7 but you can make them smaller if you'd like
Now for the crumb topping
Mix together the butter, sugar, cinnamon and flour.
Spread mixture over muffins. It got doughy for me.
Bake at 400 Fahrenheit for 20-25 minutes
Now you have yummy blueberry muffins :)