• 2 eggs
• 1 tbsp vanilla extract
• 2 cups all purpose flour
• 1 cup white sugar
• 1 cup sour cream
• 1 tsp baking powder
• 1/2 tsp baking soda
• 1/2 cup unsalted butter, softened

Crumb Topping

• 1 cup dark brown sugar
• 1/2 cup white sugar
• 1 tsp cinnamon
• 1 cup unsalted butter, melted
• 2 1/2 cups all purpose flour
• 1/2 ts[ salt