Step 1

Preheat the oven to 350 degrees F.

Step 2

Cream together the butter, 2 cups of the sugar, and the eggs.

Step 3

Add the buttermilk, flour, and baking soda.

Step 4

Divide 1/2 of the batter (or a little less) into 2 greased loaf pans, so that there is 1/4 of the batter in each pan.

Step 5

In a separate bowl, mix together the remaining sugar and cinnamon.

Step 6

Sprinkle 3/4 of the cinnamon mixture on top of the batter in each pan.

Step 7

Add the remaining batter to the pans and sprinkle the tops with the last of the cinnamon topping.

Step 8

Swirl the batter with a knife.

Step 9

Bake until the loaves are done, about 45-50 minutes.

Step 10

Cool the loaves in the pans for 20 minutes before removing them from the pan.

Step 11

Serve!