Spare Spoons Kitchen
The mayo-on-the-outside method: browns evenly, never tears the bread, and is much harder to burn than butter. Lid on for the first side so the cheese melts before the crust overshoots. A ham & cheese variation is one fold away.
Why mayo instead of butter: it spreads straight from the jar without tearing bread, it browns more evenly (the egg in it helps), and it has a higher smoke point, so the window between golden and burnt is much wider. It does not taste like mayonnaise once toasted — it just tastes like a better crust.
Butter still works. If you'd rather: use softened butter, same amounts, and watch a little more closely — butter browns faster at the edges.
Cheese guidance: American melts creamiest and most forgiving. Sharp cheddar tastes best but can go slightly greasy on its own. The mix — one slice of each — gets you both. Pre-shredded also works: about ½ cup per sandwich, piled slightly away from the edges.
The ham move: for a ham & cheese, put cheese on both sides of the ham — cheese, ham, cheese. Melted cheese is the glue; ham touching bare bread slides out on the first bite. Full details in the variation below.
The full diner combo: grilled cheese, a bowl of tomato soup, and a cold pickle spear on the plate. The "Cold Open" Tomato Soup is a dump-and-go Instant Pot match, and the pickle isn't garnish — the cold, sour crunch resets your palate between rich, buttery bites. All three together is the complete experience.
Grilled ham & cheese: add 45 g thin-sliced deli ham (2–3 slices) per sandwich. Build it cheese–ham–cheese so the melted cheese glues the ham to both slices of bread. Everything else — heat, lid, timing — is identical; the ham just warms through.
Gluten-free: use whatever GF sandwich bread you already trust — same method. GF bread browns a touch faster, so check the first side at 3 minutes.
Vegan: vegan mayo works exactly the same on the outside, and the lid-on step is precisely what plant-based cheese needs to actually melt. Give the first side an extra minute.