tomato caramelized onion hand pies

Ingredients

• 1 pint red grape tomatoes, halved 1 pint red grape tomatoes, halved 1 pint red grape tomatoes, halved
• 1 pint Sun Gold cherry tomatoes, halved 1 pint Sun Gold cherry tomatoes, halved 1 pint Sun Gold cherry tomatoes, halved
• 1 teaspoon fresh chopped thyme 1 teaspoon fresh chopped thyme 1 teaspoon fresh chopped thyme
• 1½ teaspoons kosher salt, divided 1½ teaspoons kosher salt, divided 1½ teaspoons kosher salt, divided
• ½ teaspoon granulated sugar ½ teaspoon granulated sugar ½ teaspoon granulated sugar
• 2 tablespoons olive oil 2 tablespoons olive oil 2 tablespoons olive oil
• 1 tablespoon unsalted butter 1 tablespoon unsalted butter 1 tablespoon unsalted butter
• 2 yellow onions, julienned 2 yellow onions, julienned 2 yellow onions, julienned
• 4 ounces crumbled goat cheese 4 ounces crumbled goat cheese 4 ounces crumbled goat cheese
• 2½ cups all-purpose flour 2½ cups all-purpose flour 2½ cups all-purpose flour
• ½ teaspoon kosher salt ½ teaspoon kosher salt ½ teaspoon kosher salt
• 1 teaspoon granulated sugar 1 teaspoon granulated sugar 1 teaspoon granulated sugar
• 1 cup (2 sticks) unsalted butter, cold and cubed 1 cup (2 sticks) unsalted butter, cold and cubed 1 cup (2 sticks) unsalted butter, cold and cubed
• 8 tablespoons ice water, plus more as needed 8 tablespoons ice water, plus more as needed 8 tablespoons ice water, plus more as needed
• 1 egg, beaten, for egg wash 1 egg, beaten, for egg wash 1 egg, beaten, for egg wash