Pumpkin Spice Whoopie Pies

Ingredients

• 1 cup + 1½ Tablespoons canned pumpkin (not pumpkin pie filling)
• 1 cup + 1 Tablespoon granulated sugar
• ½ cup coconut oil
• 1 egg + 1 egg yolk
• 2 2/3 cup all purpose flour
• 2 teaspoons baking powder
• 2½ teaspoons cinnamon
• ½ teaspoon salt
• 1¼ teaspoons baking soda
• 2 teaspoons milk
• ½ Tablespoon vanilla extract
• 8 oz 1 standard package cream cheese, very soft
• ½ cup 1 stick unsalted butter, very soft
• 3-4 cups powdered sugar
• 1 Tablespoon vanilla bean paste or 2 teaspoons vanilla extract
• 2-5 Tablespoons heavy cream (milk, or half and half)