Sour Cream and Chocolate Chip Nut Loaf
From How to Celebrate Everythingby Jenny Rosenstrach
Photo by Chelsea Cavanaugh

Butter, for greasing the pan

Cinnamon Sugar
¼ cup sugar
¾ teaspoon ground cinnamon 

Batter 
2 eggs 
⅔ cup sugar 
½ teaspoon pure vanilla extract 
1 ½ cups all-purpose flour 
1 ¼ teaspoons baking powder 
1 ¼ teaspoons baking soda 
1 teaspoon salt 
½ cup (1 stick) butter, melted 
1 ⅓ cups sour cream 
¾ cup semisweet chocolate chips
 ⅓ cup roughly chopped walnuts 

Preheat the oven to 375°F. Butter a 9 by 5-inch standard loaf pan. 

Make the cinnamon sugar: In a small bowl, mix together the sugar and cinnamon. 

Make the batter: In a large bowl, using an electric mixer at medium speed, beat the eggs until frothy, about 3 minutes. Add the sugar and vanilla, beating until smooth. In a medium bowl, whisk together the flour, baking powder, baking soda, and salt. 

Add the melted butter and the sour cream to the egg-and-sugar mixture; beat until well combined. At low speed, add the dry mixture to the wet mixture a spoonful at a time, beating just until smooth. Fold in the chocolate chips. 

Spread half of the batter in the prepared pan and sprinkle evenly with about two-thirds of the cinnamon sugar. Sprinkle with the walnuts. Top with the remaining batter, spreading evenly. (This cake rises considerably, so be sure the batter is at least ¾ inch below the rim of the pan.) Sprinkle with the remaining cinnamon sugar. 

Bake for 45 to 50 minutes or until a knife or skewer inserted in the center comes out clean.