Buckwheat and Mushroom Casserole

Buckwheat and Mushroom CasseroleBuckwheat and Mushroom Casserole
Course
Serves 4 people
Prep time
20m
Cook Time
15m

This is a second-day dish: leftover fluffy buckwheat plus a handful of mushrooms becomes a main course in its own right. Sour cream and egg bind the grain, and 10–15 minutes in the oven is enough to brown the top — everything in the pan is already cooked, so there is nothing to wait for.

What decides the outcome

The kasha has to be fluffy, not soft: roughly two parts water to one part groats (a cup of buckwheat is about 180 g / 6 oz), lid on, no stirring. Porridge-textured buckwheat turns gluey in a bake. Second, fry the mushrooms and onion in butter until the pan hisses dry — any water they haven’t given up stays inside the casserole.

  • Whisk the egg first and stir it into kasha that is barely warm; in hot kasha it sets into threads.
  • Smetana is the Slavic sour cream, thick and 20% fat or more. Full-fat sour cream works, crème fraîche is closer still, and low-fat tubs will thin the mixture.
  • Frozen wild mushrooms or a mix give a sharper forest aroma than cremini — no need to thaw, just fry them longer.

Ingredients

  • 1 Cup
    buckwheat groats (for fluffy kasha)
  • mushrooms (a handful)
  • 0.5 Cups
    sour cream
  • 1
    onion
  • 1
    egg
  • 3 Tablespoons
    butter
  • salt
  • pepper

Instructions

  1. Cook fluffy buckwheat kasha and let it cool a little.

  2. Finely chop the onion, slice the mushrooms, and saute them together in butter until soft and golden.

  3. Combine the kasha with the mushrooms and onion, pour in half a cup of sour cream, beat in a whisked egg, and season with salt and pepper.

  4. Spread the mixture in a buttered dish and bake for 10-15 minutes until golden and crusty.

  5. Serve hot, drizzled with the remaining sour cream.

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