After the pineapple mixture has set for about 15 minutes...
In a large mixing bowl, cream the shortening and brown sugar together. Add the beaten egg and lemon juice. Add the pineapple mixture, beating at low speed. Stir in the dry ingredients, just until moistened. Spoon into the prepared muffin pans. Bakein a preheated oven at 400º for 16 to 18 minutes or until the muffins are golden brown and the tops spring back when touched lightly in the center.

Hamilton Beach 12 Cup Professional Muffin Pan This 12 Cup muffin pan by Hamilton Beach features silicone handles that stay cool and prevent slippage. It also has a nonstick coating for easy release and quick clean up.