Recipes Ingredients Meat & Poultry Pork Recipes Ham-and-Cheese Panini 3.7 (28) 1 Review By Martha Stewart Test Kitchen Martha Stewart Test Kitchen The recipes developed by our test kitchen team have undergone a rigorous process of development and testing, ensuring that every element is optimal, from ingredient amounts to method and cooking time. This process includes triple-testing recipes to ensure they meet our high standards. The many stellar cooks and food editors who have been part of our team include Sarah Carey, Lucinda Scala Quinn, Jennifer Aaronson, Shira Bocar, Anna Kovel, Greg Lofts, Riley Wofford, Lauren Tyrell, and Lindsay Leopold. Editorial Guidelines Updated on February 24, 2023 Print Rate It Share Share Tweet Pin Email Yield: 4 sandwiches This ham-and-cheese panini is a delicious and filling sandwich sure to please the whole family. Ingredients 2 tablespoons unsalted butter 4 cups thinly sliced shallots 2 teaspoons fresh thyme ¼ cup grainy Dijon mustard 8 slices rustic white bread, sliced ½-inch thick 8 slices Gruyere cheese 8 ounces sliced cooked ham Directions Melt butter in a medium skillet over medium-low heat; add shallots. Cover and cook, stirring occasionally, until softened, about 10 minutes. Add thyme and continue cooking until onions are caramelized, about 5 minutes. Remove from heat and set aside. Spread 1 1/2 teaspoons mustard on one side of a slice of bread. Top with a slice of cheese, 2 ounces ham, 1/4 of the shallot mixture, and another slice of cheese. Spread 1 1/2 teaspoons mustard on a second slice of bread and place mustard side down on top of cheese to form a sandwich. Repeat process three times with remaining mustard, bread, cheese, ham, and shallots. Brush top and bottom of each sandwich with olive oil. Place in a panini grill and press until bread is crisp and brown, and cheese has melted slightly, 9 to 10 minutes. If using a grill pan, preheat over medium-high heat. Place a heavy pan on top of sandwiches and press down. Cook, turning once, 2 to 3 minutes per side. Cut sandwiches in half and serve immediately. Rate it Print