diabetic german chocolate cake

Ingredients

• 1/2 cup carob unsweetened chips
• 1 - (1.75oz) sugarfree milk chocolate candy bar
• 1/2 cup boiling water
• 3/4 cup sour cream
• 1/4 cup milk
• 1 cup margerine,softened (2 sticks)
• 1/2 cup sugar twin or splenda
• 1/2 cup steels powdered sugar or powdered sugar replacement
• 4 large eggs, seperated ,at room temp
• 1 teaspoon vanilla or 2 tsp imitation vanilla
• 2 cups flour
• 1 teaspoon baking soda
• 1/2 teaspoon salt (optional)
• FROSTING:
• 1 cup evaporated milk
• 1/2 cup sugar twin or splenda
• 1/2 cup steels powdered sugar or powdered sugar replacement
• 3 large egg yolks
• 1/2 cup margerine (1 stick)
• 1 teaspoon vanilla
• 2 cups shredded unsweetened coconut
• 1 1/2 cups chopped pecans or any nuts