Leek and Bacon Flan

Featured in Snacks and bites for hungry moments.

This cozy main dish brings tender leeks and crispy bacon together. Eggs, milk, and cheese make it creamy and satisfying—a French favorite for families.
Maria from tastyhush
Updated on Sat, 15 Mar 2025 14:35:31 GMT
Baked golden gratin dishes with bits of ham and green onions, served in white ramekins. Pin it
Baked golden gratin dishes with bits of ham and green onions, served in white ramekins. | tastyhush.com

In my kitchen, there are certain small dishes that bring back wonderful family memories. My leek and bacon flan is definitely one of them. It's truly delightful how the silky softness of leeks blends with the smoky bacon flavor. I whip this up frequently when friends come over, and they always ask for seconds.

A melt-in-your-mouth delight

The smell when I lift the lid after taking it from the oven is just heavenly. The leeks get this melt-in-your-mouth texture, all wrapped up in their creamy egg and milk mixture. The bacon bits add their smoky kick while the Swiss cheese creates a golden crust that nobody can resist.

Shopping list

  • 500 g leek whites: I cut them into pretty half-inch rounds.
  • 350 g smoked bacon bits: They're what gives that rich flavor punch.
  • 1 onion: Sliced thin for extra sweetness.
  • 2 eggs: Get them as fresh as you can.
  • 300 ml milk: Makes everything wonderfully creamy.
  • 100 g grated Swiss cheese: I love when it gets all brown and bubbly.
  • Salt and pepper: Add as much as you fancy.

Kitchen magic

Start with the leeks
After cutting and washing them, I boil them for about 8 minutes. Then they go straight into ice water to keep that gorgeous green color. Don't forget to drain them well.
The perfect pairing
I brown the bacon while the onion turns clear and soft. Then my leeks join the party in the pan.
The special mix
I whisk the eggs with milk, a tiny bit of salt, and some pepper. Then all my cooked veggies go in.
Oven time
Everything goes into my favorite dish or small ramekins. Sprinkle cheese on top and bake at 200°C for 20-30 minutes until it looks golden and amazing.

My secret trick

I always grate a bit of fresh nutmeg into my mixture, and trust me, it makes all the difference. For dinner parties, I prefer using individual ramekins. My guests just love having their own little flan all to themselves.

A tempting golden leek and ham gratin served in a deep dish, looking perfectly baked. Pin it
A tempting golden leek and ham gratin served in a deep dish, looking perfectly baked. | tastyhush.com

Creative twists

Sometimes I like to throw in some cumin for an exciting aroma. Fish fans should try swapping bacon for smoked salmon – it's absolutely wonderful. Serve with a crisp side salad and you've got a complete meal.

Frequently Asked Questions

→ Why should you cool leeks in ice water?
It keeps their green color vibrant and stops cooking fast, so they stay crisp and fresh.
→ Can I make this flan ahead?
Sure, prep the mix the night before and bake it fresh the next day. You can also reheat a cooked flan in the oven for a few minutes.
→ How do I know the flan's done?
It's ready when the top is golden and a knife comes out clean when poked in the center. Slightly wobbly but not liquid is perfect.
→ What can I use instead of bacon?
Diced ham or small chunks of smoked pork work great. For a veggie twist, swap bacon for mushrooms.
→ Which leeks should I pick?
Go for firm ones with a good amount of white. Medium-sized leeks are often more tender and less tough than the big ones.

Leek Bacon Flan

A creamy and cheesy flan that pairs soft leeks with smoky bacon, all baked together with eggs and topped with melted cheese goodness.

Prep Time
25 Minutes
Cook Time
40 Minutes
Total Time
65 Minutes
By: Maria

Category: Appetizers

Difficulty: Intermediate

Cuisine: French

Yield: 6 Servings (1 dish or 6 ramekins)

Dietary: Low-Carb, Gluten-Free

Ingredients

01 2 eggs.
02 300 ml of milk.
03 350 g of smoked bacon bits.
04 500 g of leek whites.
05 Pepper from the grinder.
06 A pinch of salt.
07 100 g of grated Gruyère cheese.
08 1 onion.

Instructions

Step 01

Slice the leeks into 1 cm circles. Rinse them, then boil for 7-8 minutes. Dunk in ice water after and drain well.

Step 02

Toss the bacon pieces into a pan and let them fry. Add the onion slices and cook till golden.

Step 03

Stir in the leeks with the bacon-onion blend to cook off any remaining water.

Step 04

Whisk the eggs with a sprinkle of pepper and salt. Pour in the milk and then mix it with the leek and bacon combo.

Step 05

Pour the mix into ramekins or an ovenproof dish, sprinkle Gruyère on top, and bake it for 20-30 minutes at 200°C.

Notes

  1. Pair it with some green salad for a balanced meal.
  2. Your oven's cooking time might vary a little.

Tools You'll Need

  • Oven.
  • Frying pan.
  • Gratin dish or ramekins.
  • Mixing bowl.

Allergy Information

Please check ingredients for potential allergens and consult a health professional if in doubt.
  • Eggs.
  • Dairy products (milk, Gruyère).

Nutrition Facts (Per Serving)

It is important to consider this information as approximate and not to use it as definitive health advice.
  • Calories: 320
  • Total Fat: 25 g
  • Total Carbohydrate: 8 g
  • Protein: 18 g