The Most Moist Chocolate Cake (Easy, Rich, Deeply Chocolate Layer Cake)

Ingredients

• 1 3/4 cups all-purpose flour.
• 3/4 cup unsweetened cocoa.
• 1 3/4 cups granulated sugar.
• 2 teaspoons baking soda.
• 1 teaspoon baking powder.
• 1 teaspoon salt.
• 2 teaspoons espresso powder.
• 1/2 cup vegetable oil.
• 2 large eggs, room temperature.
• 2 teaspoons vanilla extract.
• 1 cup buttermilk, room temperature.
• 1 cup hot strong coffee.
• 1 1/4 cups unsalted butter, softened.
• 3 1/2 cups confectioners' sugar.
• 3/4 cup cocoa powder.
• 3-5 tablespoons heavy cream.
• 1/4 teaspoon salt.
• 1 teaspoon vanilla extract.