Creating French Onion Soup Pizza can be straightforward if you follow these simple steps:

1. Preheat the Oven: Preheat your oven to 475°F (245°C). If you have a pizza stone, place it in the oven to heat up.
2. Caramelize the Onions: In a large skillet, heat the olive oil over medium heat. Add the sliced onions and salt, cooking for about 20-25 minutes until they are golden brown and caramelized. Stir occasionally to prevent burning.
3. Add Garlic: Once the onions are caramelized, add the minced garlic and cook for an additional 1-2 minutes until fragrant.
4. Deglaze the Pan: Pour in the broth and balsamic vinegar. Add the sugar and thyme, stirring to combine. Let the mixture simmer for about 5-10 minutes until slightly thickened. Remove from heat.
5. Roll Out the Dough: On a floured surface, roll out the pizza dough to your desired thickness. Transfer the dough to a pizza peel or a baking sheet lined with parchment paper.
6. Assemble the Pizza: Spread the caramelized onion mixture evenly over the dough. Top with shredded Gruyère and mozzarella cheese.
7. Bake the Pizza: Carefully transfer the pizza to the preheated oven (or onto the hot pizza stone). Bake for 12-15 minutes or until the crust is golden and the cheese is bubbly.
8. Cool and Slice: Remove the pizza from the oven and let it cool for a few minutes. Garnish with fresh parsley and black pepper before slicing.
9. Serve: Cut the pizza into slices and enjoy!

These steps will guide you in creating this incredible pizza effortlessly.