Name: Coffee Cake with Chocolate Streusel
Yield: 16 Servings
Ingredients: 1 cup chopped walnuts; 1 cup semisweet chocolate chips; ½ cup (packed) light brown sugar; 2 teaspoons ground cinnamon; Pinch of kosher salt; 1 cup (2 sticks) unsalted butter, room temperature, plus more for pan; 4 cups all-purpose flour, plus more for pan; 2 teaspoons baking powder; 2 teaspoons baking soda; ½ teaspoon kosher salt; 2 cups granulated sugar; 4 large eggs; 2 cups sour cream; 2 teaspoons vanilla extract; A 12-cup Bundt pan

This is a Bon Appétit Test Kitchen favorite.Alex Lau

This recipe comes from Test Kitchen contributor Jessie Damuck’s grandmother, Kathy. The story goes that in a house devoid of sweets, this was the only dessert she ever made. It remains a family—and Bon Appétit Test Kitchen—favorite. This is part of BA's Best, a collection of our essential recipes.

Recipe notes