Sour Cream-Fudge Cake With Fudge Frosting
["1 c. Hershey's cocoa", "2 tsp. instant coffee", "1 c. boiling water", "2 tsp. vanilla", "16 Tbsp. butter", "1/2 c. sour cream", "1 3/4 c. sugar", "2 eggs", "1 1/4 c. flour", "3/4 tsp. baking soda", "1/2 tsp. salt"]
["Mix cocoa, coffee and water; cool and stir in vanilla and sour cream.", "Beat butter until smooth.", "Sprinkle in sugar and beat 3 to 5 minutes.", "Add eggs one at a time.", "Whisk flour, soda and salt together.", "Add flour mixture and cocoa mixture alternately.", "Beat 15 seconds after all ingredients are combined.", "Pour batter into 2 (9-inch) pans (prepared).", "Bake at 350\u00b0 for 25 to 30 minutes. Cool 10 minutes; remove from pan."]
["cocoa", "instant coffee", "boiling water", "vanilla", "butter", "sour cream", "sugar", "eggs", "flour", "baking soda", "salt"]