Lone Star Dark Chocolate Cake

Lone Star Dark Chocolate Cake
Ingredients:
For the cake:

2 cups all-purpose flour
2 cups granulated sugar
3/4 cup unsweetened cocoa powder
2 teaspoons of baking soda
1 teaspoon of chemical yeast
1 teaspoon of salt
1 cup buttermilk
1 cup vegetable oil
2 large eggs
2 teaspoons vanilla extract
1 cup boiling water
For the caramel icing:

1/2 cup unsalted butter
1/4 cup unsweetened cocoa powder
1/4 cup buttermilk
3 1/2 cups powdered sugar
1 teaspoon vanilla extract
1 cup chopped pecans (optional)
The preparation :

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