Preheat your oven to 350°F. Lightly grease a 9x5 inch loaf pan and place a sheet of parchment paper over the middle so it folds over the sides.
In a medium bowl, whisk together the flour, baking powder, salt, and cinnamon.
In a large bowl, cream together the softened butter and sugar until light and fluffy (electric mixer recommended).
Mix the eggs and vanilla extract into the butter and sugar really well.
Alternately stir the dry ingredients and kefir into the wet ingredients, just until combined.
Scoop the batter into the prepared loaf pan and smooth the top with a spatula.
Combine the sugar and cinnamon for the topping and then sprinkle it evenly over the batter.
Place the pan on the middle rack and bake at 350°F for about 40-50 minutes. The cinnamon sugar top should get crunchy, so make sure a toothpick comes out of the batter underneath clean.
Let the snickerdoodle bread cool in the pan for 20-30 minutes and then lift it onto a wire rack to finish cooling. Slice and enjoy!
Notes
Mini Loaves: Distribute batter evenly into a greased mini loaf pan, sprinkle the tops with cinnamon sugar, and bake at 350°F until a toothpick comes out clean (start checking around 15-20 minutes).Storage: Keep cooled snickerdoodle bread in an airtight container for up to 5 days or freeze individually wrapped slices in a freezer-safe container for up to 1 month.Lifeway Kefir: This recipe is sponsored by Lifeway Foods. I love their mission and baking with their kefir!