Step 1

Preheat the oven to 400 degrees. Grease a muffin tin or line with muffin cups.

Step 2

Mix the muffin dry ingredients (flour, sugar, salt, baking powder) in a large bowl. In a glass measuring cup, pour in the 1/3 cup oil. Add an egg and then pour in enough milk to make a full cup of liquid ingredients.

Step 3

Pour liquid ingredients into dry ingredients and mix well. Carefully fold blueberries into mix and spoon into muffin cups.

Step 4

Mix topping ingredients together with a fork until crumbly. Sprinkle over the top of the muffin batter.

Step 5

Bake about 25 minutes or until golden and a toothpick inserted in one comes out clean.