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Red Onion Tart
by Syd in Breakfast Eggs
- Rating
- ★ 5.0
- Prep
- 25 min
- Cook
- 35 min
- Total
- 1 h
Ingredients
17 ingredients
- 1 (.25 ounce) package active dry yeast
- 1 pinch white sugar
- ½ cup warm water
- 1 egg, at room temperature
- 3 tablespoons butter, at room temperature
- 2 ½ cups all-purpose flour
- 1 teaspoon salt
- 2 teaspoons lemon zest
- ½ teaspoon vegetable oil
- ½ red onion, sliced
- 1 cup shredded Gouda cheese
- ½ cup grated Parmesan cheese
- 2 jarred roasted piquillo peppers, diced
- ¼ teaspoon ground black pepper to taste
- 2 eggs
- 1 ½ cups heavy cream
- ¼ teaspoon stone-ground mustard