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Sunny Stone Fruit & Grilled Veg Dutch Quiche with Sourdough Crust

A summery Dutch quiche boasting a tangy sourdough crust, grilled veggies, and caramelized stone fruits—naturally sweet, vibrant, and refined-sugar-free.

Total: 3 hours 15 minutes
Difficulty: Medium
Serves: 8
summer quiche sourdough stone fruit refined sugar free grilled refinedsugarfree sourdough-starter dutch multi-step

What Makes This Special

This Dutch-style quiche is a radiant ode to summer, featuring a tangy, rustic sourdough crust and a vibrant filling of grilled summer vegetables, sunny stone fruits, and nutty Gouda. The use of active sourdough starter adds complex flavor while keeping the recipe refined-sugar-free and wholesome. Caramelized nectarines and peaches harmonize with savory veggies and rich dairy for a quiche that is both unique and utterly seasonal.

Ingredients

This quiche draws on the natural sweetness of stone fruits and the charred depth of grilled vegetables, all supported by the earthiness of a sourdough crust. Every ingredient plays a role in flavor, structure, or seasonal flair.

For the Sourdough Crust

  • Active sourdough starter (120 g): Provides a tangy foundation, natural leavening, and complexity.
  • Cold butter (80 g): Ensures flakiness and richness.
  • Whole wheat & all-purpose flours (200 g total): A balance of wholesome texture and tender crumb.
  • Fine sea salt (5 g): Enhances flavors.
  • Cold water (as needed): Brings dough together without overworking.

For the Filling

  • Stone fruits (nectarines and peach): Seasonal stars, bringing juicy sweetness.
  • Grilled vegetables (zucchini, yellow bell pepper, red onion): Add summery depth and color.
  • Eggs (4) & dairy (milk, crème fraîche): Create a silky, custardy filling.
  • Aged Gouda (100 g): Classic Dutch cheese with nutty flavor.
  • Fresh thyme, black pepper, sea salt: Brightness and balance.

Instructions

Step 1: Prepare and Feed Your Sourdough Starter

Ensure your starter is active and bubbly. Feed at least 6 hours before baking (ideally the night before): mix equal weights of flour and water into your mother starter, cover, and let rise until doubled. This guarantees rise and distinct sour tang.

Sourdough Tip: Use your starter at peak ripeness—just after it doubles and before it collapses, for best leavening and flavor.

Step 2: Make the Sourdough Crust

  1. In a large bowl, whisk together the flours and salt. Add the cold, cubed butter and rub gently between your fingertips until the mixture resembles coarse breadcrumbs with some pea-sized lumps remaining.
  2. Add the active sourdough starter and 1–2 tbsp (15–30 ml) cold water. Using a bench scraper or your hands, mix just until a shaggy dough forms. Do not overwork—the crust must stay tender.
  3. Gather the dough into a disk, wrap in baking paper, and chill for at least 1 hour (up to overnight). Chilling relaxes gluten and hydrates flour, making the crust easier to roll.

Step 3: Roll and Par-Bake the Crust

  1. On a lightly floured surface, roll out the dough to a 28-cm circle, about 4 mm thick.
  2. Transfer to a 23-cm tart or quiche pan, pressing gently into the corners. Trim excess overhang. Prick the base with a fork.
  3. Chill the lined pan for 30 minutes to prevent shrinkage.
  4. Preheat oven to 180°C (fan 170°C). Line crust with baking paper and fill with pie weights or dried beans. Bake for 15 minutes, then remove weights and paper. Bake uncovered for 8 minutes longer, until just golden. Let cool slightly.

Step 4: Grill the Veggies and Stone Fruits

  1. Preheat a grill pan or outdoor grill over medium-high. Brush all veg and stone fruit slices with olive oil.
  2. Grill zucchini, bell pepper, and onion for 2–3 minutes per side until charred and tender. Grill nectarines and peach slices for 1–2 minutes per side, just until grill marks appear and juices caramelize.
  3. Set aside to cool slightly.

Step 5: Prepare the Filling

  1. In a large bowl, whisk together eggs, milk, crème fraîche (or yogurt), 3/4 of the grated Gouda, thyme, black pepper, and a pinch of salt until smooth.
  2. Arrange grilled vegetables and half the grilled stone fruit in the base of the cooled crust. Pour over the custard mixture. Scatter remaining Gouda and stone fruit on top for sunburst effect.

Step 6: Bake the Quiche

  1. Bake at 170°C (fan 160°C) for 35–40 minutes, or until the filling is puffed and just set in the center.
  2. Cool on a rack for at least 20 minutes before slicing. Garnish with fresh thyme if desired.

Pro Tips

  • Mastering Sourdough Crust: Use fridge-cold butter and handle dough minimally for best flakiness; don’t skip the chilling times.
  • Grill with Care: Grill fruits only briefly to avoid mushiness—you’re aiming for caramelized marks, not a jammy texture.
  • Egg Custard: Whisk custard thoroughly but not vigorously to avoid too much air, which can create holes in the quiche.

Troubleshooting

Crust shrank or is tough? Likely overworked or under-chilled—next time, chill dough longer and mix just to combine.

Filling soggy? Make sure grilled veggies are patted dry and the crust is par-baked until golden.

Variations

  • Vegan Option: Substitute plant-based butter, oat milk, and a vegan egg replacer; use your favorite vegan cheese.
  • Add Greens: Layer in a handful of baby spinach or fresh basil leaves for extra color and flavor.
  • Switch Stone Fruits: Try plums or apricots for a tangier twist.

Storage

Store cooled quiche, covered, in the refrigerator for up to 3 days. Reheat slices gently in a low oven (150°C) or enjoy at room temperature. The crust stays crisp if you reheat on a baking tray.

Bring a slice of summer sunshine to your table—Dutch-style!