Go Fednuts! Federal Donuts' Salted Tehina Donuts

Ingredients

• 12 large egg yolks
• 1 cup granulated sugar
• 5 tablespoons butter
• 1 1/4 cups buttermilk
• 3 1/2 cups all-purpose flour
• 1 1/2 teaspoons salt
• 1 teaspoon baking soda
• 1/2 teaspoon baking powder
• 1/4 teaspoon baharat (kalustyans.com)
• canola or peanut oil
• 3 3/4 cups confectioners' sugar
• 1/2 cup tehina (tehini)
• 1/2 cup water
• 1 tablespoon salt
• 1/2 cup sesame seeds