Creamed Spinach and Leeks with Cheddar from Blue Chair Cooks with Jam & Marmalade - Cooking by the B

Ingredients

• Kosher salt
• 1 pound spinach leaves
• 2 tablespoons plus 2 tablespoons unsalted butter, preferably European-style
• 2 tablespoons neutral-flavored olive oil
• 2 large leeks, including some of the green, halved lengthwise and sliced crosswise
• ¾ teaspoon dry mustard
• ¾ teaspoon plus a large pinch of freshly ground white pepper
• 2 tablespoons My Apple Butter (see page 60 in the book!)
• 1 tablespoon and 1½ teaspoons unbleached all-purpose flour
• 1¾ cups warm whole milk
• 1½ cups packed coarsely grated cheddar cheese, preferably Irish