01 -
Set oven to 175°C. Generously grease a 23 x 33-centimetre baking pan to ensure easy release.
02 -
In a mixing bowl, beat softened butter with granulated sugar until pale and fluffy using a hand mixer.
03 -
Add eggs one at a time, mixing well after each addition. Stir in vanilla extract and blend in sour cream until smooth.
04 -
In a separate bowl, whisk together flour, baking powder, baking soda, and salt until evenly combined.
05 -
Gradually add the dry ingredients to the wet mixture, blending until just incorporated and a thick batter forms.
06 -
Mix chopped pecans, ground cinnamon, and brown sugar in a small bowl; set aside.
07 -
Spread half of the batter evenly in the prepared baking pan. Sprinkle half of the pecan streusel over the batter. Gently add the remaining batter and finish with the remaining streusel on top.
08 -
Bake for 45 to 55 minutes, or until a toothpick inserted in the centre comes out clean.
09 -
Remove from oven and allow cake to cool in the pan for 15 minutes.
10 -
Whisk together powdered sugar and milk in a small bowl until smooth. For a thinner consistency, add additional milk as needed.
11 -
Drizzle cake with glaze, slice, and serve warm or at room temperature.