Red Onion Tart
Prep Time: 25 min
Cook Time: 35 min
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