Lightly grease 6 jumbo muffin cups. Preheat oven to 500°F.
In a small bowl, combine all ingredients for streusel topping. Set aside.
In a medium bowl, beat together milk, oil, eggs and vanilla. Set aside.
In a large bowl, combine flour, sugar, baking powder and salt. Add fruit and toss to coat. Stir in liquid ingredients and lightly stir until just combined. Do not over mix.
Divide batter among muffin tin cups about ¾ full. Top with streusel.
Place muffins in oven and lower heat to 400°F. Bake for 20-25 minutes or until a toothpick inserted in center comes out clean.