pizza with bacon, onions and cream

INGREDIENTS

• 1/2 pound pizza dough
• Olive oil, for oiling baking sheets
• 1/2 cup fromage blanc or ricotta
• 1/2 cup crème fraîche or sour cream
• 1 tablespoon all-purpose flour
• Salt and freshly ground pepper
• 1/4 pound thickly sliced smoky bacon, cut crosswise into 1/4-inch strips
• 1 medium onion, thinly sliced