Three-Layer Caramel Cake

Ingredients

• Cake:
• 2 1/2 cups self-rising flour
• 1 1/2 cups canola oil
• 1 1/2 cups white sugar
• 1 1/4 cups buttermilk
• 2 large eggs
• 1 teaspoon white vinegar
• 1 teaspoon baking soda
• 1 teaspoon vanilla extract
• 1 teaspoon unsweetened cocoa powder
• Caramel Frosting:
• 2 (14 ounce) cans sweetened condensed milk
• 1 cup dark brown sugar
• 6 tablespoons butter
• 2 teaspoons vanilla extract
• 1/4 teaspoon salt