Name: French onion impossible quiche recipe
Prep time: 10 min
Cook time: 50 min
Total time: 60 min
Yield: 6
Ingredients: 2 tsp olive oil; 2 medium brown onions, sliced; 20.00 ml brown sugar; 1 tsp balsamic vinegar; 5 eggs; 375.00 ml milk; 82.50 ml self-raising flour; 2 tsp French onion soup mix; 250.00 ml grated tasty cheese; 20.00 ml parsley, chopped

by Greer Worsley Last updated on 06/27/2025

A delicious onion-y quiche where the pastry base magically appears while baking - impossibly easy!

- Greer Worsley

Ingredients

2 tsp olive oil
2 medium brown onions, sliced
1 tbsp brown sugar
1 tsp balsamic vinegar
5 eggs
1 1/2 cups milk
1/3 cup self-raising flour
2 tsp French onion soup mix
1 cup grated tasty cheese
1 tbsp parsley, chopped

Method

Step 1

Heat oil in a small saucepan. Add onions and cook over low heat with a lid on for 10 minutes, stirring often, until very soft and starting to caramelise. Add sugar and vinegar and cook for a further 5 minutes. Set aside to cool.
Step 2

Preheat oven to 180C fan-forced. Grease a deep 24cm pie dish.
Step 3

In a large bowl, whisk eggs and milk. Whisk in flour and soup mix until smooth. Stir through cheese, parsley and caramelised onions. Pour into prepared dish.
Step 4

Bake for 35 minutes until quiche has just set. Allow to cool slightly before slicing and serving. Watch our step-by-step video below to see how to make the French onion impossible quiche recipe.