Praline Sheet Cake

Ingredients

• 2 cups all-purpose flour
• 2 cups firmly packed light brown sugar
• 1/2 teaspoon baking soda
• 1/2 teaspoon salt
• 1 cup (2 sticks) unsalted butter
• 1 cup water
• 1/2 cup buttermilk
• 2 large eggs
• 2 teaspoons vanilla extract
• 1 cup firmly packed light brown sugar
• 1/2 cup (1 stick) unsalted butter
• 1/3 cup heavy cream
• pinch of salt
• 1 teaspoon vanilla extract
• 1 1/2 cups confectioners’ sugar, sifted
• 1 1/4 cups coarsely chopped pecans