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Miso Mushroom Toast with Soft Eggs

Miso Mushroom Toast with Soft Eggs

Crisp sourdough topped with glossy miso-butter mushrooms and a soft, runny egg yolk that melts into a savory sauce. This umami-rich toast balances chewy mushrooms, gentle fermented depth, and silky yolk—perfect for elevated breakfasts or relaxed brunches that still come together fast.
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Prep Time 8 minutes
Cook Time 12 minutes
Total Time 20 minutes
Servings: 2 Servings
Course: Breakfast, Brunch, Light Meal
Cuisine: Brunch-Style, Japanese-inspired, Vegetarian
Calories: 380
Ingredients Method Notes

Ingredients
  

  • 200 g mixed mushrooms button, chestnut, or king oyster, sliced
  • 2 slices sourdough or rustic bread
  • 1 tbsp olive oil plus extra for toasting
  • 1 tbsp butter softened
  • 1 –2 tsp white miso paste to taste
  • 1 small shallot finely sliced (optional)
  • 2 eggs soft-boiled or softly fried
  • Black pepper to taste
  • Optional base: whipped silken tofu vegan cream cheese, or butter
  • Optional finish: chopped chives or parsley flaky salt

Method
 

  1. Bring a small pot of water to a simmer and cook eggs 6–7 minutes for soft centers, then cool briefly.
  2. Heat a skillet over medium heat with a thin layer of oil and pan-toast bread 3–4 minutes per side until deeply golden and crisp.
  3. In the same pan, add olive oil and sauté shallot over medium heat until softened.
  4. Add mushrooms, raise heat slightly, and cook undisturbed until browned, then stir and cook until edges caramelize.
  5. Lower heat and stir softened butter and miso together, then add to mushrooms and toss gently until glossy.
  6. Peel eggs and set aside, or soft-fry eggs separately if preferred.
  7. Spread a thin layer of cream or butter on toast, top with miso mushrooms, and finish with a soft egg.
  8. Crack black pepper over the top and add flaky salt only if needed.
  9. Serve immediately while toast is crisp and yolk is runny.

Notes

White miso adds gentle sweetness and umami without overpowering the mushrooms; add it off high heat to keep the butter glossy and smooth. Avoid salting early, as miso provides seasoning. Uniform mushroom slices ensure even browning, and sturdy bread is essential to support the soft egg and rich topping.