Spiced Lamb Hand Pies

Name: Spiced Lamb Hand Pies
Ingredients: 3 tablespoons white wine vinegar; 3 tablespoons dried currants; 2 tablespoons olive oil; 1 small onion, finely chopped; 1 small garlic clove, finely chopped; Kosher salt, freshly ground pepper; 1 tablespoon tomato paste; 3/4 teaspoons ground cumin; 3/4 teaspoons ground ginger; 1/4 teaspoons ground cardamom; 1/4 teaspoons ground turmeric; 1/2 pound ground lamb; 1 cup canned crushed tomatoes; 1/3 cup frozen peas; 2 tablespoons chopped fresh parsley; All-Butter Pie Dough; All-purpose flour (for surface); 1 large egg, beaten to blend