Recipes and Cooking Caramelized Onion and Apple Tart 3.3 (18) 1 Reviews Imperfection is key when shaping flatbread pizza dough. Ooey pockets and a little bit of crunch make for a totally delish dinner. By BHG Test Kitchen BHG Test Kitchen The Better Homes & Gardens Test Kitchen has been in continuous operation for nearly 100 years, developing and testing practical, reliable recipes that readers can enjoy at home. The Test Kitchen team includes culinary specialists, food stylists, registered and licensed nutritionists, and other experts with Bachelor of Science degrees in food science, food and nutrition, or culinary arts. Together, the team tests more than 2,500 recipes, produces more than 2,500 food images, and creates more than 1,000 food videos each year in the state-of-the-art test kitchen. Learn about BHG's Editorial Process Published on August 1, 2013 Print Share Share Tweet Pin Email Photo: Andy Lyons Prep Time: 30 mins Bake Time: 18 mins Total Time: 48 mins Servings: 6 Jump to Nutrition Facts Ingredients 2 tablespoon butter 1 large red onion, thinly sliced 1 pound purchased pizza dough (thawed if frozen) 2 ounce thinly sliced cooked ham 1 small red cooking apple, cored, quartered and thinly sliced ⅔ cup shredded Swiss cheese Fresh thyme (optional) Coarse salt and freshly ground black pepper Directions Place oven rack in lowest position; preheat oven to 450°F. Lightly coat a large baking sheet with nonstick cooking spray; set aside (or line with parchment paper that is safe to 450°F). To caramelize onions, in a large skillet melt butter over medium-low heat. Add onion. Cook, covered, about 12 minutes or just until tender, stirring occasionally. Uncover; cook and stir over medium-high heat for 3 to 5 minutes more or until very tender. Remove from heat; set aside. On a lightly floured surface, roll out or press pizza dough into an irregular rectangular shape, about 13x9 inches. Transfer to prepared pan. Build up edges slightly. Prick generously with a fork. Bake until puffed and lightly crisped on the bottom, about 8 minutes. Top with ham, caramelized onion, apple and cheese. Bake 10 minutes more or until crust is crispy and golden and the cheese is melted. Sprinkle with fresh thyme, if desired. Season to taste with salt and pepper. Print Nutrition Facts (per serving) 304 Calories 10g Fat 41g Carbs 10g Protein Show Full Nutrition Label Hide Full Nutrition Label Nutrition Facts Servings Per Recipe 6 Calories 304 % Daily Value * Total Fat 10g 13% Saturated Fat 5g 25% Cholesterol 29mg 10% Sodium 560mg 24% Total Carbohydrate 41g 15% Total Sugars 5g Protein 10g Vitamin C 3.3mg 17% Calcium 127mg 10% Iron 12.1mg 67% Potassium 101mg 2% Folate, total 7.4mcg Vitamin B-12 0.5mcg Vitamin B-6 0.1mg *The % Daily Value (DV) tells you how much a nutrient in a food serving contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.