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["Dissolve the sugar in the warm water in a large bowl.", "Sprinkle the yeast over the water, and let stand for 5 minutes until the yeast softens and begins to form a creamy foam.", "Add the oil, salt, and 2 cups of flour, and kneed the mixture until forms a wet dough.", "Then add the remaining 1 cup of flour, 1/4 cup at a time, and knead until the dough pulls away from the sides of the bowl into a ball.", "Knead for 3 to 5 more minutes, until the dough is smooth and elastic.", "Lightly oil a large bowl, then place the dough in the bowl and turn to coat with oil.", "Cover with a damp cloth and let rise in a warm place (80 to 95 degrees F (27 to 35 degrees C)) until doubled in volume, about 1 hour.", "Mix together the ricotta, mozzarella, and Parmesan cheeses, pepperoni, parsley, Italian seasoning, olives, green pepper, and mushrooms in a large bowl, and set aside.", "Preheat oven to 375F (190C) F (190 degrees C).", "Line a baking sheet with parchment paper or cooking spray.", "Punch down the dough, and roll it out into a long, flat strip about 9 inches wide by 30 inches long.", "Spoon the filling mixture down the center of the dough strip, leaving about 1 inch on all sides for sealing.", "Pull edges of the dough together, pinch to seal and form a long, filled roll.", "Arrange the roll, seam side down, onto the prepared baking sheet in a snakey ""S"" shape, and tuck the ends underneath to seal.", "Beat the egg in a bowl with 1 tablespoon of water, and brush the egg wash over the calzone.", "Bake for 30 to 35 minutes, until the calzone is golden brown.", "Let cool for a few minutes until you can handle", "Cut into individual slices."]