Instant Pot Mashed Potatoes

INGREDIENTS

1 1/2 cups

water

4 lb

russet potatoes, peeled

2 cups

half-and-half or whole milk, warm

8 tbsp

unsalted butter, at room temperature

2 tsp

kosher salt

Freshly ground black pepper (optional)

1 tbsp

butter, at room temperature

3 tbsp

half-and-half or whole milk

1 tbsp

chopped fresh chives (optional)

2 tbsp

cold butter (optional)