INGREDIENTS
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2 to 2½ lb/1 to 1.25 kg russet or other floury potatoes (5 or 6)
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6 to 8 tbsp butter
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2 to 3 lightly packed cups/400 to 800 g chopped kale or assorted chopped greens (such as kale, parsley, sorrel, spinach, and/ or broccoli or cauliflower leaves)
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1 1/3 cups/320 ml milk
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4 scallions, green part only, minced
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Salt and pepper