Egg-Cellent Lemon Meringue

Name: Egg-Cellent Lemon Meringue
Prep time: 1 h
Cook time: 1 h 30 min
Total time: 2 h 30 min
Cuisine: European
Ingredients: 6 egg whites from about 6 large eggs (this should be about 2/3 cup); 1¼ cups plus 1 tablespoon granulated sugar; ¼ teaspoon Diamond Crystal kosher salt; use half as much if iodized; ¼ teaspoon cream of tartar; 1 teaspoon coconut oil; 1 10 oz jar lemon curd; 1 8 oz container prepared whipped topping, such as CoolWhip