BEST EVER Banana Bread

1 cup butter
3 cups sugar
6 eggs
3 cups sour cream
4 tsp. soda
2 tsp. vanilla
4-5 mashed bananas
1 tsp. salt
5 c. flour
1 pkg chocolate chips (optional)
chopped walnuts (optional)

Cream together the butter, sugar and eggs. Mix together in a separate bowl, the sour cream and soda. Let stand until foamy. Stir the sour cream mixture into the banana mixture. Add remaining ingredients and mix well. Place in 4 greased and floured 9x5 in. bread pans. Bake 350° for 50 minutes or until toothpick inserted comes out clean. You may need to lightly cover the loaves with a piece of tinfoil the last 20 minutes to keep it from getting too dark. This recipe can be halved.