Crumb
1/4 cup unsalted butter, softened and cut into small pieces
1/3 cup all-purpose flour
1/2 cup packed light brown sugar
1 teaspoon ground cinnamon
1/4 cup chopped pecans
pinch salt

Cream Cheese Swirl

4 ounces cream cheese, softened
1/4 cup packed light brown sugar
1/2 teaspoon vanilla extract
1/2 teaspoon ground cinnamon
1/4 cup chopped pecans

Coffee Cake

3 cups all-purpose flour
1 teaspoon baking powder
1 teaspoon baking soda
1/2 teaspoon salt
1 cup unsalted butter, softened
1 cup granulated sugar
2 large eggs
1 teaspoon vanilla extract
1 & 1/4 cups sour cream