Spring Scalloped Potatoes with Leeks Gelson's

Ingredients

• 2 Tbsp unsalted butter, plus more for greasing pan
• 3 cups chopped leeks (white and pale green parts only), soaked and rinsed
• 2 tsp kosher salt
• ½ tsp freshly ground pepper
• 4 lb baking potatoes, peeled and thinly sliced
• 2 Tbsp chopped Gelson’s organic fresh chives, plus more for garnish
• 2 cups shredded Gruyère cheese
• 3 cups heavy whipping cream