Smoked Salmon with Fromage Blanc, Chives, and Pickled Celery

Ingredients

• 1⁄4 cup white wine vinegar
• 2 tsp. kosher salt, plus more to taste
• 1 1⁄2 tsp. sugar
• 2 stalks celery, thinly sliced on an angle
• 1 cup fromage blanc
• 1⁄4 cup finely chopped chives, plus 2 chives cut into 1" pieces for garnish
• Freshly ground black pepper, to taste
• Rye toast points, for serving
• 6 oz. smoked salmon