Divide your ground beef into 12 equal portions—about 1.3 ounces each. Form each into a thin patty that's slightly wider than your slider bun, then make a small thumbprint indent in the center. This prevents them from puffing up like little domes while cooking.

Heat a skillet or griddle over medium-high heat. Once it's hot enough that a water droplet sizzles immediately, you're ready to go. Don't wait around here—the sizzle is your signal.

Season your patties with salt and pepper on both sides right before they hit the pan. Lay them down gently and don't move them for 2 minutes. Mine always stick a little to the pan and that's totally fine—they'll release when they're ready.

Flip each patty, top immediately with a cheese slice, and cook for another 90 seconds. The cheese melts from the residual heat and creates that perfect gooey layer you're after.

Toast your slider buns in the same skillet with butter, about 30 seconds per side until they're golden. This step sounds extra but it keeps them from getting soggy and adds serious flavor.

Spread your sauce on the bun bottoms—I use the mayo-mustard combo, then add ketchup on top. Layer lettuce first, then your cheesy patty, then tomato and pickle chips and red onion.