01 - Set oven temperature to 480°F or the highest setting available. If using a pizza stone, position it in the oven while heating.
02 - On a lightly floured work surface, stretch or roll the pizza dough into a 12-inch round. Transfer the dough to a parchment-lined baking sheet or pizza peel.
03 - In a small mixing bowl, combine crème fraîche, minced garlic, chopped dill, lemon zest, salt, and black pepper. Mix until thoroughly blended.
04 - Spread the crème fraîche sauce evenly over the pizza base, leaving a 1/2-inch border around the edge.
05 - Evenly distribute shredded mozzarella cheese on top of the sauce.
06 - Arrange sliced dill pickles and red onion (if using) over the cheese.
07 - Bake in the oven for 12 to 15 minutes, or until the crust turns golden and the cheese is bubbling.
08 - Remove pizza from the oven. Garnish with fresh dill, cut into slices, and serve immediately.