Serves: 6-8 | Prep: 20 minutes | Bake: 45-50 minutes | Rest: 10 minutes
Dish: 23 x 33 cm (9 x 13 in) glass baking dish
Ingredients
Custard base
- 6 large eggs, room temperature
- 300 ml (1¼ cups) whole milk
- 150 ml (⅔ cup) plain yogurt or sour cream
- 3 tbsp melted butter
- 4 tbsp all-purpose flour
- 1 tsp baking powder
Filling
- 4 medium potatoes (about 700 g / 1.5 lb), peeled and coarsely grated
- 1 medium onion, grated
- 3 garlic cloves, finely minced
- 250 g (2½ cups) shredded cheese, half mozzarella and half mild cheddar
- 50 g (½ cup) finely grated Parmesan or aged hard cheese
- 1 large bunch fresh parsley (about 1 cup), finely chopped
- 3 tbsp chopped dill or spring onion tops
Seasoning
- 1½ tsp salt (reduce slightly if your cheese is salty)
- ½ tsp black pepper
- ¼ tsp ground nutmeg
- ½ tsp sweet paprika
Topping
- 80 g (¾ cup) extra shredded cheese
- 2 tbsp grated Parmesan
- 1 tbsp olive oil
Method
1. Prepare the oven and dish. Heat the oven to 190°C (375°F) with the rack in the middle. Grease the glass dish thoroughly with butter, getting into the corners. Glass heats slowly, so a hot oven and a well-greased dish matter.
2. Grate and dry the potatoes. Grate them on the coarse side of a box grater. Place the shreds in a clean kitchen towel and twist hard to wring out the water. This is the most important step, because wet potatoes make a soggy, split bake. Work quickly so the potatoes don’t turn grey, or toss them with a teaspoon of lemon juice.
3. Build the custard. In a large bowl, whisk the eggs until fully broken up and slightly frothy. Add the milk, yogurt, and melted butter and whisk until smooth. Let the melted butter cool for a minute first so it doesn’t scramble the eggs.
4. Add the dry ingredients. Sift the flour and baking powder over the liquid and whisk until no lumps remain. The batter should look like a thin pancake batter. The baking powder is what gives the light, puffy, soufflé-like lift in your photo.
5. Fold in the flavor. Add the onion, garlic, parsley, dill, salt, pepper, nutmeg, and paprika. Stir in the mozzarella, cheddar, and Parmesan. Fold in the dry potatoes last and mix until every shred is coated.
6. Fill the dish. Pour the mixture in, spread it evenly, and tap the dish on the counter twice to release air pockets. The mixture should be about 3-4 cm (1.5 in) deep, as in your photo.
7. Add the topping. Scatter the extra cheese and Parmesan evenly and drizzle with olive oil. The oil helps the cheese brown and blister.
8. Bake. Bake for 40 minutes, then check. The edges should be set and pulling slightly from the glass, and the top should be golden. If it’s still pale, bake 5-10 minutes more. For the darker toasted spots, place it under the broiler for 2-3 minutes at the end and stay beside the oven.
9. Test for doneness. Insert a knife into the center. It should come out clean or with only a few moist crumbs. The center should barely jiggle, not wobble.
10. Rest and cut. Let it rest 10 minutes. This is how you get clean slices like the knife cut in your photo. Cut into strips or squares.
Key success points
- Dry the potatoes well. It’s the number one fix for a watery center.
- Use room-temperature eggs. They blend evenly and rise better.
- Don’t open the oven in the first 25 minutes. The batter needs steady heat to set.
- Season the batter boldly. Baked egg dishes taste milder than the raw mix.
Variation 1: Zucchini and Cheese Bake (lighter, very custardy)
This is closest to the soft, pale interior in the cross-section of your photo.
Ingredients
- 800 g (1¾ lb) zucchini, grated
- 1 tsp salt (for drawing out water)
- 5 eggs
- 200 ml (¾ cup) milk
- 4 tbsp flour
- 1 tsp baking powder
- 200 g (2 cups) shredded mozzarella
- 60 g (½ cup) grated Parmesan
- 1 onion, finely chopped
- 2 garlic cloves
- 1 cup chopped parsley
- ½ tsp pepper, pinch of nutmeg
- 2 tbsp olive oil
Method
- Toss the grated zucchini with the salt and leave it in a colander for 15 minutes. Squeeze out all the liquid by hand or in a towel. Expect to remove nearly a cup of water.
- Heat the oven to 180°C (350°F) and oil the dish.
- Whisk the eggs, milk, olive oil, flour, baking powder, pepper, and nutmeg until smooth.
- Stir in the onion, garlic, parsley, and two-thirds of the cheeses, then fold in the zucchini. Taste the batter before adding more salt, since the zucchini already carries some.
- Pour into the dish, top with the remaining cheese, and bake 40-45 minutes until puffed and golden.
- Rest 10 minutes before slicing.
Variation 2: Chicken, Broccoli, and Cheese Bake (a complete meal)
Ingredients
- 400 g (14 oz) cooked chicken breast, shredded or diced small
- 300 g (3 cups) small broccoli florets
- 5 eggs
- 250 ml (1 cup) milk
- 100 ml (⅓ cup) cream
- 4 tbsp flour
- 1 tsp baking powder
- 200 g (2 cups) shredded cheese plus ½ cup for topping
- 1 small onion, diced and softened in a little oil
- 2 garlic cloves
- ½ cup chopped parsley
- 1 tsp salt, ½ tsp pepper, ½ tsp garlic powder, ½ tsp paprika
Method
- Heat the oven to 190°C (375°F) and grease the dish.
- Blanch the broccoli in boiling salted water for 2 minutes, drain, and pat dry.
- Whisk the eggs, milk, cream, flour, baking powder, and seasonings until smooth.
- Stir in the cheese and parsley, then add the chicken, broccoli, onion, and garlic.
- Pour into the dish, top with the extra cheese, and bake 35-40 minutes until golden and set.
- Rest 10 minutes and serve with salad or rice.
Variation 3: Cauliflower and Cheese Bake (low-carb)
Ingredients
- 1 medium cauliflower (about 800 g), grated or pulsed into rice-sized pieces
- 5 eggs
- 150 ml (⅔ cup) cream or milk
- 3 tbsp almond flour or regular flour
- 1 tsp baking powder
- 250 g (2½ cups) shredded cheese
- 1 small onion, grated
- 2 garlic cloves
- ¾ cup chopped parsley
- 1 tsp salt, ½ tsp pepper, ½ tsp paprika
Method
- Microwave or steam the cauliflower for 4-5 minutes until just tender. Cool it, then squeeze out the moisture in a towel.
- Heat the oven to 190°C (375°F) and grease the dish.
- Whisk the eggs, cream, flour, baking powder, and seasonings. Stir in the cheese, onion, garlic, and parsley, then fold in the cauliflower.
- Pour into the dish, top with cheese, and bake 40-45 minutes until golden and firm in the center.
- Rest 10-15 minutes. This version needs slightly longer to set.
Serving Suggestions
- Fresh salad: Tomato, cucumber, and red onion with lemon juice and olive oil cuts the richness.
- Garlic yogurt sauce: Mix plain yogurt with crushed garlic, dried mint, and a pinch of salt.
- Bread: Warm flatbread or crusty bread suits any of these.
- For breakfast: Serve a square with a fried egg and sliced tomatoes.
Storage and Reheating
- Fridge: Cover and refrigerate up to 3 days.
- Freezer: Freeze individual portions wrapped tightly for up to 2 months, and thaw overnight in the fridge.
- Reheat: Use a 170°C (340°F) oven for 12-15 minutes or an air fryer for 5 minutes to restore the crisp top. A microwave works but softens the crust.
Troubleshooting
| Problem | Likely cause | Fix |
|---|---|---|
| Watery center | Vegetables not squeezed dry | Wring out vegetables thoroughly; bake 5-10 minutes longer |
| Pale top | Not enough cheese or heat | Add more topping cheese and broil briefly |
| Heavy, dense texture | Too much flour or old baking powder | Measure carefully and use fresh baking powder |
| Top browns before center sets | Oven too hot | Cover loosely with foil and lower the heat by 10°C |
| Sticks to the dish | Under-greased | Grease generously, or line the dish with baking paper |