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A rich mixture of brown sugar, cinnamon, granulated sugar, flour, and room temperature butter—cut into small pieces—is combined with coarsely chopped pecans. This streusel is generously sprinkled over the batter, ensuring a crunchy topping with visible nut pieces.
The Cake Batter
Creaming ten tablespoons of softened butter with a cup of sugar forms the foundation. Incorporating three large eggs, a teaspoon of vanilla, and sour cream results in a luscious batter. Dry ingredients—flour, baking powder, baking soda, and salt—are added gradually, alternating with sour cream, creating a dense yet tender crumb.