The Very Best Crustless Quiche (Impossible Quiche!)

This is the VERY BEST crustless quiche! It's sometimes known as Impossible Quiche (namely in Australia!). Added flour sinks to the bottom during cooking, creating a thin pancake-y crust. You can either add caramelized onions and mushrooms, ham and cheese, like I’ve stated in the recipe below, or you can keep things super simple and add raw finely chopped veggies like onions, peppers and tomatoes.

📝 Ingredients

• 1 onion (medium sized, any kind, sliced thinly into rounds)
• 1 tablespoon butter (for cooking the onions)
• 5 ounces mushrooms (around 4 medium mushrooms, best chopped into small pieces)
• 3 1/2 ounces ham (chopped)
• 1 cup grated cheese (sharp (strong/tasty) cheddar is fine, or try gruyere, parmesan, Swiss cheese or a mixture of cheeses)
• 1/2 cup self-raising flour
• 1 1/2 cups milk
• 4 large eggs (lightly whisked (if you only have small eggs, add an extra one))
• 2 teaspoons mustard ((I usually use wholegrain, but Dijon or any other mustard also works))
• 1/4 teaspoon salt (or to taste)
• 1/4 teaspoon pepper (or to taste)

👨‍🍳 Instructions

1. 1Preheat oven to 375°F (190°C).: Preheat the oven to 375°F (190°C) (increase to 390F/200C if you have a regular oven i.e. not a fan oven).
2. 2Cook onions in butter for 10 minutes.: Melt the butter in a large frying pan or saucepan. Then cook the onions slowly for about 10 minutes or until soft and beginning to caramelize.
3. 3Add mushrooms and cook for 2 minutes.: Add the mushrooms to the onions in the pan and cook for a further couple of minutes.
4. 4Grease quiche dish, then spread onions, mushrooms, ham and cheese over the bottom.: Grease a standard quiche dish (around 9.5 inches/24 cm or similar - see note below) with a little butter, or spray with oil. Spread the onions and mushrooms evenly over the dish. Then scatter over the chopped ham and cheese.
5. 5Add milk to flour, then whisk in eggs, mustard, salt, pepper.: Slowly add the milk to the flour in a large jug. Whisk continuously so that there are no lumps, then whisk in the eggs, mustard, and salt and pepper.
6. 6Pour mixture into dish, then bake quiche for 30 to 40 minutes.: Pour the egg mixture evenly over the fillings in the dish. Then bake for 30 (to 40) minutes, or until the mixture is just cooked in the centre. Slice and serve!