Classic Sour Cream Coffee Cake with Cinnamon Streusel | CookNoted

Ingredients

• 1 1/2 cups all-purpose flour, spooned and leveled
• 3/4 cup granulated sugar
• 2 tsp baking powder, fresh is best
• 1/2 tsp salt
• 1/2 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
• 1/2 cup all-purpose flour for streusel
• 1/2 cup light or dark brown sugar, packed
• 1 tsp ground cinnamon
• 4 tbsp cold unsalted butter, cut into small cubes