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Sweet Potato and Onion Gratin with Feta

This was a total experiment that paid off big time. Don't you love when that happens? I was inspired by a recipe from Amy Valpone for a sweet potato red onion gratin, and then I upped the spice and herbs plus added a bit of stock to deepen the flavor. Where did the feta come from? I had some in the fridge and thought it would work together...and it does!


2 large Sweet Potatoes

1 large Onion

2 tbsp Flour

1 tsp dried Thyme

1/2 tsp Cayenne (or more if you want it a bit hotter)

1 tsp Smoked Paprika

1/2 tsp Pepper

2 cups Chicken or Vegetable Stock

8 oz Feta

1 cup Grated Parmesan Cheese

Kosher or Sea Salt


Preheat oven to 350 degrees Fahrenheit.

Peel and thinly slice the sweet potatoes and the onions. Place the onions in a separate bowl, and add the flour, thyme, cayenne, smoked paprika, and pepper. Toss to coat.

In a casserole dish, add some stock to the bottom of the pan to cover it. Add a layer of sweet potatoes. Sprinkle with a pinch of salt. Add a layer of floured and seasoned onions. Sprinkle with 1/3 of the feta and 1/4 of the Parmesan cheese. Pour over a 1/4 cup of stock.

Repeat the layers two times ending with a layer of sweet potatoes on top, adding stock after each layer. Finish by adding the last of the feta and Parmesan to the top of the sweet potatoes. Optional - you can sprinkle with olive oil, but it isn't really necessary.

Bake for 40-50 minutes or until you can insert a knife into the potatoes without resistance.

Take out and let sit for 5-10 minutes before serving.


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About Me

Hi!  I'm Jen

Cooking is a passion passed down from both of my grandmothers to my mother and then to my sister and me.