Blueberry Streusel Cake Recipe

Ingredients

• 120 g Plain Flour
• 1 tbsp Brown Sugar
• 1 tbsp Granulated Sugar
• 1 tsp Cinnamon
• 50 g Unsalted Butter (chilled)
• 1 tsp Baking Powder
• ¼ tsp Baking Soda
• ½ tsp Salt (adjust to taste )
• 100 g Sour Cream
• 1 tsp Vanilla Extract
• 50 g Unsalted Butter (softened)
• 150 g Sugar
• 1 large Egg
• 200 g Blueberries