Recipe: Grandma's 1930's Chocolate Sour Cream Cake (repost )

This was previously posted on The Recipe Link by Gina/FL. Gina is a wonderful cook and has posted volumes of great recipes here at TRL.
Enjoy. Kel
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Grandma's 1930's Chocolate Sour Cream Cake

1 stick (1/2 cup) butter
2 1/2 oz. unsweetened chocolate
1 egg
1 cup sugar
1 cup sour cream
1 1/4 cups sifted cake flour
1/4 tsp. baking soda

Grease 2 layer pans or bundt pan.

Melt butter and chocolate over low heat.

Beat egg, add sugar and beat well. Add sour cream and beat.

Sift flour with baking soda and mix in by hand, do not beat in. Add melted butter and chocolate and hand mix.

Pour into prepared pan and bake at 350 45 minutes for bundt pan or 30 minutes for the layer pans. Cool 10 minutes. Invert and cool completely.

Old Fashioned Frosting:

3 1/2 oz. unsweetened bakers chocolate
3 Tbsp. butter
3 cups sifted confectioner's sugar
1/4 tsp. salt
1/4 cup milk
1 tsp. vanilla
dash of instant coffee granules

Melt the chocolate and butter. Blend all the remaining ingredients and add to the hot chocolate mixture. Let stand in cool place until ready to use.