Crispy Fried Cheese Sandwich with Homemade Tartar Sauce

In a small bowl, whisk together the sour cream, mayonnaise, and a pinch of salt until smooth to get a silky tartar sauce. Peel the red onion and slice it into thin rings.

Cut the Trappist cheese into two finger-thick slices. Prepare three shallow bowls: measure the flour into the first, lightly beat the eggs with a pinch of salt in the second, and pour the breadcrumbs into the third.

Coat the cheese slices first in flour, then in beaten egg, and finally in breadcrumbs. For a secure coating and an irresistible crunch, dip them once more into the egg and breadcrumbs, pressing the double breading firmly onto the cheese.