Ingredients:

• 240 g all-purpose flour
• 1 cup sugar
• 1 whole egg room temperature
• 1 tablespoon baking powder
• ¼ teaspoon salt
• 2⁄3 cups milk
• ½ cup oil
• 1½ cup vanilla
• 2 cup blueberries 
• 1 teaspoon cinnamon

topping ingredients:

• 75g all-purpose flour
• 1½ tsp cinnamon
• 56g butter
• ½ cup brown sugar
• ½ cup white sugar

Method:

• Mix the flour, sugar, baking powder, and salt
• Whisk the egg, milk and oil 
• Use a rubber spoon to combine with the flour for just 30 seconds
• Add blueberries, lemon juice, cinnamon and vanilla
• To make the topping, mix the topping ingredients and mix by hand 

• place on muffin tray and add the topping

• Bake in 205 °C oven for 18 minutes