Heat the oven to 350°F and butter a shallow 2-quart baking dish with the measured teaspoon butter. Drain the corn well and pat away surface moisture.
Whisk eggs, milk, cream, sugar, melted butter, salt and nutmeg until smooth without whipping in much air.
Fold in corn and pour into the baking dish. Spread the kernels evenly across the bottom.
Bake for 40 to 50 minutes until lightly golden around the edges and 160°F in the center, with only a gentle central wobble rather than flowing liquid.
Let stand for 10 minutes before serving in soft spoonfuls.