Food & Cooking Recipes Dessert & Treats Recipes Pie & Tarts Recipes Kielbasa, Apple, and Cheddar Pretzel Tart Be the first to rate & 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 January 14, 2019 Print Rate It Share Share Tweet Pin Email Photo: Bryan Gardner Prep Time: 25 mins Total Time: 50 mins Servings: 4 Pretzel salt baked into the crust's edges, plus sliced kielbasa and green apple in the topping, put this tart squarely on German ground. Ingredients All-purpose flour, for dusting 1 pound pizza dough, room temperature 2 tablespoons Dijon mustard 1 large egg, lightly beaten Pretzel salt or coarse salt, for sprinkling 4 ounces sharp cheddar, coarsely grated 10 ounces kielbasa, cut on the bias into ½-inch slices 1 Granny Smith apple, cored and cut into ½-inch wedges ½ small red onion, cut into ¼-inch wedges ¼ cup fresh sage leaves Extra-virgin olive oil, for drizzling Directions Preheat oven to 450 degrees with rack in lower third. On a parchment-lined baking sheet lightly dusted with flour, stretch dough into a 10-by-15-inch rectangle, with a 1-inch border of thicker dough. Brush entire surface inside border evenly with mustard. Brush border with egg, then sprinkle generously with salt. Sprinkle cheese over mustard. Scatter kielbasa, apple, onion, and sage evenly over cheese, then drizzle with oil. Bake until crust is deep golden brown and bottom is set, about 25 minutes; tent with foil if edges brown too quickly. Serve hot. Cook's Notes Buy a pound of fresh pizza dough from a pizzeria, or look for it in the freezer section of the grocery store and thaw according to the package instructions. Rate it Print