Mom's Buttery Apple Cake

INGREDIENTS

• 1/2 cup unsalted butter, room temp
• 3 golden delicious apples, peeled and sliced thinly (or Granny Smith)
• 2/3 cup flour
• 1/2 teaspoon salt
• 1/2 teaspoon baking powder
• 1 cup sugar
• 2 whole eggs, plus
• 1 egg yolk
• 1 teaspoon vanilla extract
• 1/2 teaspoon lemon zest
• 1 teaspoon cinnamon
• 1/8 teaspoon nutmeg
• 1/8 teaspoon clove