flaky blood orange tart

INGREDIENTS

• 1 cup all-purpose flour, plus more for dusting
• 1/4 cup plus 2 tablespoons granulated sugar
• 1/4 teaspoon baking powder
• 1/4 teaspoon salt
• 1 stick plus 1 tablespoon unsalted butter, the stick cut into 1/2-inch pieces and chilled
• 3 tablespoons ice water
• 8 to 10 blood oranges (about 5 ounces each) [I only needed 7]
• 1 large egg yolk mixed with 2 tablespoons of water
• , for serving (after using Zoe Nathans, decided that I definitely prefer my own, reprinted below)
• 1 cup sugar
• 3 ounces (6 tablespoons) salted butter, the better you can get, the better it will taste
• 1/2 cup plus two tablespoons heavy cream, at room temperature