Browned Butter Smashed Potatoes With Butternut Squash

Ingredients

• 1 pound yellow-flesh potatoes, cut into three-quarter-inch chunks
• 1 small butternut squash, peeled, seeded, and cut into one-inch chunks
• 3 tablespoon butter, divided
• 8-10 fresh sage leaves, stacked and cut across into a quarter-inch strips
• 1/2 cup one percent milk
• 1 pinch of salt
• 1 pinch of freshly ground black pepper