Alex Guarnaschelli’s Deluxe Coffee Cake

Step 1: Topping:

Step 2: Line a baking sheet with parchment paper.In a medium bowl, stir together the walnuts, pecans, flour, granulated and brown sugars, cinnamon, and salt.

Step 3: Stir in the butter.

Step 4: The topping should form sandy clumps.

Step 5: Sprinkle the topping onto the baking sheet to break it up into smaller clumps.

Step 6: Refrigerate.

Step 7: Preheat the oven to 350°F.

Step 8: Use 1 tablespoon butter to thoroughly grease the bottom and the sides of a 9-inch round baking pan

Step 9: Pam spray it

Step 10: Cake batter:

Step 11: Cream:

Step 12: Beat the 4 tablespoons butter and sugar together, on medium-high, scraping down the sides from time to time, for 8 minutes.

Step 13: Lower the speed and add the large eggs, one at a time

Step 14: Dry:

Step 15: Sift together the flour, salt,baking powder, and baking soda.

Step 16: In a separate bowl, whisk together the sour cream, vanilla and yogurt until smooth.

Step 17: Alternate adding dry and wet to creamed mixture When all has been mixed in, give the sides and the bottom of the bowl a good scrape and blend to make sure the batter is thoroughly combined. Transfer the batter to the greased baking pan

Step 18: And tap it lightly on the sides so it falls evenly in the pan and to remove any air bubbles.

Step 19: Sprinkle topping on

Step 20: Bake 45 minutes until done