Shrimp Mashed Potatoes

Name: Shrimp Mashed Potatoes
Ingredients: 2 pounds medium-size Yukon gold potatoes, peeled and diced; 6 tablespoons unsalted butter, at room temperature; 2 cloves garlic, peeled; 1 tablespoon plus 1 teaspoon kosher salt; 1/4 to 1/2 cup half-and-half, at room temperature; 2 small lemons, zested; 2 1/2 teaspoons chopped fresh chives; 2 1/2 teaspoons chopped fresh Italian parsley; 2 1/2 teaspoons chopped fresh thyme; 1/2 teaspoon freshly ground black pepper; 2 tablespoons unsalted butter, at room temperature; 12 ounces medium shrimp (about 30 per pound), peeled and deveined; 1/4 teaspoon kosher salt; 1/4 teaspoon freshly ground black pepper