1 cup butter, softened
2 cups granulated sugar
4 eggs
1 teaspoon vanilla
3 cups all purpose flour
2 teaspoons baking soda
1/2 teaspoon salt
2 cups sour cream
1 3/4 cups shelled pistachio nuts
3 drops green food coloring
Frosting, for garnish, optional
Pistachio nuts, for garnish, optional

Preparation Instructions:
1. Cream butter with the sugar until light and fluffy. Beat in the eggs and vanilla until smooth.

2. Sift flour with the baking soda and salt. Stir into the butter mixture, alternating with the sour cream.

3. In a food processor or blender, process the pistachio nuts until very fine granules form. Reserve 1/2 cup.

4. Mix remaining nuts into batter along with the green food coloring.

5. Grease and flour a 10 inch bundt pan.

6. Pour batter into pan. Sprinkle reserved nuts on top.

7. Bake at 375 degrees for 45 to 50 minutes.

8. Let cool for 10 minutes. Remove from pan. Let cool completely.

9. Garnish with a green thin frosting, if desired. Sprinkle with pistachio nuts, if used.