1Preheat oven to 375
Line muffin tin with papers or use non stick spray in each well
2Whisk together sugar, egg, vanilla, milk and lemon zest in a small bowl.
3In another bowl combine flour, and baking powder. Cut in butter (I grate the butter for ease in mixing. Dough will be crumbly. Add liquid ingredients, mix well. If batter seems too stiff add a touch of milk (1 Tablespoon at a time) Add berries, lightly stir so as not to crush berries.
Combine all ingredients in small bowl. Mix well
5Spoon batter into prepared muffin tin and top with crumb topping.
Bake at 375 17-20 min or until golden brown on top and cake tester comes out clean.