Place a pizza stone on the middle rack and preheat your oven to 500°F (260°C).
On a lightly floured surface, stretch or roll out the dough into an 8-inch circle. Leave the edges slightly thicker than the center for that classic Spago-style crust.
Brush the dough with chili-garlic oil and top with thinly sliced red onions.
Bake for 6–8 minutes, until the crust is golden and crisp.
Carefully remove from the oven and spread the dill cream evenly over the center of the pizza.
Arrange the smoked salmon slices in overlapping layers, sprinkle with fresh chives, and if you want to recreate the full restaurant experience, top with a small spoonful of Sevruga caviar on each slice.
Using a pizza cutter, cut into 4 or 6 slices.
Serve immediately with a glass of champagne (or sparkling water with lemon for a lighter pairing).