Add the frozen corn kernels to the skillet and stir to coat them in the melted butter. Cook, stirring occasionally, for 5–7 minutes, until the corn is heated through and you start to see a few golden spots on the kernels.
Drizzle the honey over the corn and stir well so every kernel is lightly glazed. Continue cooking for another 2–3 minutes, allowing the honey and butter to bubble together and begin forming a glossy, slightly caramelized coating.
Pour in the heavy cream and stir to combine. Bring the mixture to a gentle simmer, then reduce the heat to medium-low. Let it cook, stirring frequently, for 4–6 minutes, or until the cream thickens slightly and clings to the corn in a shiny, rich sauce.
Taste and adjust: if you prefer it sweeter, drizzle in a little more honey; if the sauce seems too thick, loosen it with a splash more cream. Continue cooking just until the kernels are tender and the glaze is glossy and bubbling around the edges.
Remove the skillet from the heat and let the corn sit for 2–3 minutes; the sauce will thicken a bit more as it cools slightly. Serve straight from the cast iron skillet while still hot, scooping up plenty of the honey butter cream sauce with each spoonful.
For a touch of salt to balance the sweetness, you can add a small pinch of kosher salt to the skillet when you add the heavy cream; this won’t change the core 4-ingredient concept but will sharpen the flavors. If you like gentle heat, a light sprinkle of freshly ground black pepper or a pinch of crushed red pepper flakes at the end adds a subtle contrast to the honeyed glaze.
To lean more into a creamed-corn texture, mash a small portion of the corn in the skillet with the back of a spoon, then stir it back into the whole kernels. If you don’t have frozen corn, you can use well-drained canned corn; just be sure to pat it dry with a clean towel so excess liquid doesn’t thin the glaze.
In late summer, fresh corn cut from the cob is wonderful—plan on about 4–5 ears to yield 3 cups of kernels, and cook a minute or two less since fresh kernels stay tender. For food safety, keep the corn refrigerated within two hours of cooking and store leftovers in a covered container in the refrigerator for up to 3 days; reheat gently over low heat, adding a spoonful of cream or water if the sauce has thickened too much. Always heat leftovers until they are steaming hot throughout before serving.