Oatmeal Cream Pies

Name: Oatmeal Cream Pies
Prep time: 30 min
Total time: 30 min
Cuisine: American
Ingredients: 3/4 cup butter, room temperature; 1 cup granulated sugar; 1/2 cup light brown sugar; 2 tablespoons molasses; 2 eggs; 1 teaspoons kosher salt; 2 teaspoons baking soda; 1 teaspoon baking powder; 1 teaspoon ground cinnamon; 2 cups all purpose flour; 2 cups quick oats; 1 tablespoon plus 1 teaspoon unflavored gelatin (about 1 1/2 packets); 1/3 cup plus 1/4 cup water (divided); 3/4 cup granulated sugar; 1/4 cup light corn syrup; 2 teaspoons vanilla; 1 cup powdered sugar; 1 cup butter, room temperature