Grandgirl's Fresh Apple Cake

Cake:
2 cups sugar
3 large eggs
1 1/2 cups vegetable oil
1/4 cup orange juice
3 cups all-purpose flour
1 teaspoon baking soda
1/4 teaspoon salt
1 tablespoon cinnamon
1 tablespoon vanilla extract
3 cups peeled and finely chopped apples
1 cup shredded coconut
1 cup chopped pecans

Sauce:
1/2 cup (1 stick) butter
1 cup sugar
1/2 cup buttermilk
1/2 teaspoon baking soda

Preheat oven to 325F. Generously grease a Bundt pan.
For cake, combine cake ingredients in a large bowl in the order given and mix well. Pour batter
into the prepared pan and bake 1 1/2 hours.
Remove cake from oven; let cool 10 minutes. Remove cake from pan, and place on wire rack.
To make sauce, melt butter in a large saucepan, stir in sugar, buttermilk, and baking soda, and bring to a good rolling boil, stirring constantly. Boil 1 minute. Pour sauce over the warm cake.