Foryoueats: Classic Coffee Cake

Ingredients

• For the streusel topping:
• 1 cup (180g) brown sugar, packed
• 1 cup (125g) all-purpose flour
• 1 teaspoon ground cinnamon
• Pinch kosher salt
• 1/2 cup (113g) unsalted butter, softened
• For the cinnamon layer:
• 1/4 cup (50g)sugar
• 1 tablespoon all-purpose flour
• 1/2 teaspoon ground cinnamon
• For the cake batter:
• 3 cups (375g) all-purpose flour
• 2 1/4 cups (450g)sugar
• 3/4 teaspoon baking powder
• 1/2 teaspoon baking soda
• 1/2 teaspoon kosher salt
• 1 cup (226g) unsalted butter, softened
• 1 cup (230g)sour cream
• 1/4 cup whole milk
• 4 large eggs
• 1 tablespoon vanilla extract