First, preheat the oven to 400°F (200°C). Thengrease muffin cups or put muffin liners.
Secondly, combine 1 1/2 cups flour, 3/4 cup sugar,salt , and baking powder. Then put the vegetable oil in a 1 measuring cup. Addthe eggs and add enough milk to reach the 1 cup mark. Then mix this with theflour mixture. Fold in blueberries. Fill muffin cups to the top and sprinklewith the breadcrumb mixture.
Third, to prepare the crumbs: Mix ½ cup sugar, ¼cup flour, ¼ cup butter, and 1 1/2 teaspoons cinnamon. Then mix with a fork andsprinkle over muffins before baking.
Fourth and finally, let it bake for 20 to 25minutes in a preheated oven or until done.
