How many servings does this recipe make?

This recipe makes 4 servings. You can adjust the portion size directly on this page.

What ingredients do I need for Potato Gratin?

You need 12 ingredients. The key ingredients include: light vegetable oil cooking spray, 3 medium baking potatoes, thinly sliced, 2 Tbsp. flour, 1 medium onion, trimmed, thinly sliced and separated into rings, and more.

Is Potato Gratin suitable as vegetarian?

Yes, Potato Gratin falls under the Vegetarian category and is a great choice for this type of meal.

How do I store leftover Potato Gratin?

Store leftovers in an airtight container in the refrigerator for up to 3–4 days. Reheat gently before serving.

Potato Gratin Recipe

Name: Potato Gratin
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: light vegetable oil cooking spray; 3 medium baking potatoes, thinly sliced; 2 Tbsp. flour; 1 medium onion, trimmed, thinly sliced and separated into rings; 1/8 tsp. paprika; 1/2 tsp. freshly ground pepper; 2 Tbsp. Parmesan cheese; 1 small zucchini, trimmed and thinly sliced; 1/4 tsp. nutmeg; 1/2 tsp. spike seasoning; 12 oz. evaporated skim milk; 2 Tbsp. chopped parsley (for garnish)

Try this homemade Potato Gratin recipe the whole family will love. Made with light vegetable oil cooking spray, baking potatoes, flour and onion. Easy s…

This Potato Gratin relies on simple, everyday ingredients such as flour, paprika, freshly ground pepper and parmesan cheese. It comes together quickly and makes 4 servings, at about 149 kcal each. The step-by-step instructions below are written to be easy to follow, even on a busy day.

It's versatile enough for an easy weeknight dinner yet satisfying enough for guests at the weekend. Serve it with your favorite sides, and keep any leftovers for a quick meal the next day.

Updated Jun 30, 2026

Serves 4 Vegetarian

Tips for the best results

Read through all the steps once before you start and measure out your ingredients first — it makes everything go more smoothly.
Taste as you go and adjust the seasoning before serving.
Avoid overcrowding the pan — cook in batches if needed for the best texture.
Let the dish rest for a few minutes before serving so the flavors settle.
Store leftovers in an airtight container in the fridge and enjoy within a few days.

Variations & substitutions

A good 1:1 gluten-free flour blend works well if you need a gluten-free version.

No specific allergen information. Please check the ingredient list for possible allergens.

My Personal Notes

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Potato Gratin

Tips for the best results

Variations & substitutions

My Personal Notes

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