Food & Cooking Recipes Main Dish Recipes Casserole Recipes Golden Mashed Potato Gratin 3.7 (79) 1 Review By Martha Stewart Editors Martha Stewart Editors Facebook Instagram Twitter Website An article attributed to "Martha Stewart Editors" indicates when several writers and editors have contributed to an article over the years. These collaborations allow us to provide you with the most accurate, up-to-date, and comprehensive information available.The Martha Stewart team aims to teach and inspire readers daily with tested-until-perfected recipes, creative DIY projects, and elevated home and entertaining ideas. They are experts in their fields who research, create, and test the best ways to help readers design the life they want. The joy is in the doing. Editorial Guidelines Updated on January 21, 2021 Print Share Share Tweet Pin Email Photo: Romulo Yanes Servings: 8 Serve this hearty potato gratin with our Apricot-Bourbon Glazed Ham as part of your Easter feast—or any sunny spring celebration. Ingredients 3 ½ pounds Yukon Gold potatoes, peeled and cut into 1-inch pieces 8 tablespoons (1 stick) unsalted butter ½ cup sour cream ½ cup half-and-half 1 tablespoon Dijon mustard 2 cups fresh breadcrumbs Directions Preheat oven to 350 degrees. In a large pot, bring potatoes to a boil in salted water over high. Reduce heat to a rapid simmer and cook until potatoes are tender when pierced with a knife, about 12 minutes. Drain, return to pot, and mash. Add 6 tablespoons (3/4 stick) butter and stir until melted. Stir in half-and-half and sour cream and season with salt and pepper. Transfer to a shallow 2-quart baking dish. In a medium bowl, stir together 2 tablespoons melted butter and mustard; add breadcrumbs and stir until coated. Sprinkle over potatoes and bake until breadcrumbs are golden brown, about 20 minutes. Print