Step 1: Preheat oven to 350 F. Grease and flour a 10-inch tube or Bundt pan.
Step 2: In a mixer bowl, cream together 2 3/4 cups sugar and 1 cup softened butter until light and fluffy. Add 6 eggs, one at a time, beating well after each addition.
Step 3: In a large bowl, sift together 3 cups flour, 1/2 teaspoon salt and 1/4 teaspoon baking powder soda; add to creamed mixture alternately with 1 cup sour cream, beating well after each addition.