Classic Sour Cream Coffee Cake with Cinnamon Streusel | CookNoted

Ingredients

• 1.5 cup all-purpose flour, spooned and leveled
• 0.75 cup granulated sugar
• 2 tsp baking powder, fresh is best
• 0.5 tsp salt
• 0.5 cup unsalted butter, melted and slightly cooled
• 1 cup sour cream, room temperature
• 2 large large eggs, room temperature
• 1 tsp vanilla extract, pure preferred
• 0.5 cup all-purpose flour for streusel
• 0.5 cup light or dark brown sugar, packed
• 1 tsp ground cinnamon
• 4 tbsp cold unsalted butter, cut into small cubes