Chocolate Streusel Banana Muffins

150 g Whole wheat flour angiesrecipes 100 g All-purpose flour 2 tsp Baking powder 1/2 tsp Baking soda 120 g Brown sugar angiesrecipes Pinch of salt 2 Eggs

375 g Ripe banana, mashed 1 cup Milk 1 tbsp Lemon juice 80 g Salad oil 100 g Chocolate streusel 50 g Pine nuts

1. 
   Preheat oven to 180C/350F. Lightly grease 16 muffin cups, or line with muffin papers.
   
2. 
   In a large bowl, mix together two kinds of flour, baking soda and baking powder. In another bowl, whisk together sugar, egg, oil and salt. Add mashed banana, milk and lemon juice to the brown sugar mixture and stir to combine.
   
3. Sift the flour mixture into the wet one and stir only until the ingredients are just moistened and combined. Gently stir in chopped nuts. Do not over mix the batter or tough muffins will result. Spoon batter into prepared muffin cups and bake for about 30 minutes.