Impossible Ham Quiche

The “impossible” in impossible quiche is the no-crust trick, flour whisked right into the custard sinks to the bottom during baking and forms a tender, crust-like layer on its own. No rolling, no blind baking, no chilled butter, just blend, pour, bake.

The flavour build here leans on sauteed mushrooms, diced ham, monterey jack, and a backbone of sour cream for tang and richness. The sour cream is what keeps the custard silky instead of rubbery, don’t swap it for plain milk.

Cooking the mushrooms first matters. Raw mushrooms dump water into the custard as they cook, giving you a soggy quiche with watery pockets. Saute until lightly browned and drain off any liquid before they hit the batter.

Let the quiche rest ten minutes after baking, it firms up as it cools and slices cleanly instead of weeping.

Pro Tips

• Grease the quiche dish well, the self-formed crust sticks easily without proper pan prep.
• Bring the eggs and sour cream to room temperature before blending for a smoother custard.
• Check doneness with a knife at the centre, it should come out clean but the quiche will still jiggle slightly.
• Freshly grated parmesan beats pre-grated here, the powdered stuff can make the top gritty.

Variations

• Swap ham for crumbled cooked bacon or crisp pancetta for a smokier edge.
• Use swiss cheese in place of monterey jack for a ham and cheese quiche Lorraine feel.
• Stir in a handful of chopped fresh spinach (squeeze dry first) along with the mushrooms for a greener version.