Indulge in this delightful Light & Tangy Summer Brunch Coffee Cake, a perfect treat for any morning gathering. Featuring a rich, moist cake base, a sweet walnut sugar filling, and a crunchy cinnamon streusel topping, it's a breeze to make and promises to brighten your day.
Get Ready: Preheat your oven to 350°F (175°C). Lightly grease a 9x9 inch baking dish with nonstick spray or line it with parchment paper for easy removal.
Make the Streusel Topping: In a medium bowl, combine the cold butter, ¾ cup all-purpose flour, ½ cup brown sugar, and 1 tablespoon cinnamon. Use a pastry cutter or a fork to blend until it looks like coarse, wet sand with delightful crumbs. Don't overmix! Pop this into the fridge to chill.
Prepare the Walnut Filling: In a small separate bowl, mix the chopped walnuts, 1 ½ tablespoons brown sugar, 1 ½ tablespoons white sugar, and ½ teaspoon cinnamon. Set aside.
Start the Cake Batter: In a large mixing bowl (or using a stand mixer with a paddle attachment), cream together the room temperature butter and 2 cups white sugar for 2 to 3 minutes until the mixture is light and fluffy.
Add Wet Ingredients: Beat in the eggs one at a time, then stir in the vanilla extract until well combined.
Combine Dry Ingredients: In another bowl, sift together the remaining 2 cups all-purpose flour, baking powder, and salt. Sifting helps ensure a light, airy cake!
Gently Mix Batter: With your mixer on low speed, gradually add half of the dry flour mixture to the wet batter until just combined. Then, fold in the low-fat sour cream. Finish by adding the remaining flour mixture and stir gently with a spatula until the batter is just smooth – be careful not to overmix!
Layer the Cake: Spoon about half of the cake batter into your prepared pan and spread it out evenly with a spatula or knife. Sprinkle the walnut sugar filling over this layer, followed by approximately one-third of your chilled streusel topping. Carefully spoon the remaining cake batter over the filling, spread it out gently, and then scatter the rest of the streusel on top.
Bake to Perfection: Bake for 55 to 60 minutes, or until a cake tester inserted into the center comes out clean.
Cool & Enjoy: Let the cake cool on a wire rack for at least 15 minutes. For a lovely presentation, carefully transfer it to a serving plate, streusel side up. If desired, lightly dust with powdered sugar before slicing and savoring this delicious, easy treat!
Notes
Nutrition Information (per serving): Calories: 388kcal, Total Carbs: 51g, Net Carbs: 50g, Fats: 19g, Protein: 5g