Red Velvet Layer Cake

Ingredients :
1 cup butter, sotftened.
2 1/2 cup sugar.
6 large eggs.
3 cup allpurpose flour.
3 tbsp unsweetened cocoa.
1/4 tsp baking soda.
1(8 0z) container sour cream.
2 tsp vanilla extract.
2 ( 1 oz ) bottles red food coloring.
1 1/2 recipes . 5 cup cream cheese frosting.

Preparation :
1.Preheated oven to 350 degrees F. Beat butter at medium speed with an electric mixer until
   creamy, gradually add sugar, beating until light and fluffy. Add eggs, 1 at a time, beating
   just until blended after each additon.
2. Combine flour, cocoa powder, baking soda, add to butter mixture alternately with flour
    mixture. Beat at low speed just until blended after each addition. Stir in vanill, stir in red food
    coloring, spoon cake batter into 3 greased and floured 8 inch round cake pans.
3. Bake 350 degrees F for 18 to 20 minutes or until a wooden pick inserted in center comes
    out clean. Cooling pans on wire rack 10 minutes. Remove from pans to wire racks , and
let cool 1 hour or until completely cool.
4. Spread 5 cup cream cheese frosting between layers and top sides of cake.