Mustard Macaroni and Cheese

By Jane

4.0 / 5

15min

50min

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½ (8 ounce) package Cheddar cheese or to taste
4 slices back bacon
1 (8 ounce) package elbow macaroni
1 tablespoon butter
1 tablespoon all-purpose flour
1 pint milk
2 teaspoons Dijon mustard (such as Maille Dijon Originale®)
salt and freshly ground black pepper to taste
1 leek trimmed and cut into thin rings