Gluten and Dairy free Scalloped Potatoes

Main ingredients

•  2 tablespoons (1 ounce or 25 grams) margarine (use soy-free, if needed)
•  4 tablespoons oil 
•  1/2 cup potato starch 
•  2 large onions, chopped 
•  1/2 cup Gefen Light Mayonnaise
•  3/4 teaspoon salt 
•  3 and 1/2 cups water 
•  2 tablespoons onion soup mix 
•  5 large potatoes 

Prepare Scalloped Potatoes

1. In a medium saucepan over a medium-low flame, heat together the flour, onions, mayo, salt, water, and onion soup mix.
2. Stir constantly with a whisk until the mixture is smooth and it thickens.
3. Preheat the oven to 350 degrees Fahrenheit (180 degrees Celsius).
4. Slice the potatoes in a food processor.
5. Layer into a 9×13-inch pan as follows: a layer of sauce, a layer of sliced potatoes (try to overlap just minimally), sauce, potatoes, and sauce (five layers altogether).
6. Sprinkle the top with paprika and pepper.
7. Bake uncovered for about one a half hours, until the potatoes are crispy.
8. If necessary, put under the grill for a few minutes.

Note: Flour can be used instead of potato starch. 

Variation: Use half white potatoes and half sweet potatoes (see photo). I tried this without margarine and just with oil and it was fine. It’s very creamy from the other ingredients. Also, you can use chicken soup powder instead of the onion soup mix.