Apple Cinnamon Streusel Loaf

Gradually add the flour mixture to the butter mixture, alternating with the sour cream or Greek yogurt, beginning and ending with the flour mixture. Mix until just combined.

Fold in the diced apples until evenly distributed throughout the batter.

Assemble the loaf: Pour half of the batter into the prepared loaf pan. Sprinkle half of the streusel topping over the batter. Repeat with the remaining batter and streusel topping.
Enjoy.