• Preheat oven to 400. Grease or line 12 muffin cups
• Combine flour, sugar, salt and baking powder
• In a separate bowl combine oil, eggs and milk
• Mix liquid ingredient into dry ingredients
• Fold in blueberries
• Fill muffin cups almost to the top

For the Crumble

• Mix the melted butter, brown sugar and flour
• Cover the top of the muffins with the crumb mixture
• Bake 20 - 25 minutes until a toothpick comes out clean