Step 1

Preheat the oven to 375°F. If the brussels sprouts are large, you may want to cut the halves into quarters.

Step 2

Heat the butter in a large ovenproof skillet over medium heat, then sauté the shallots for 1 minute until they begin to soften. Add the Brussels sprouts and sauté for 5 minutes until the outsides start to soften and brown just a bit. Pour over the half and half or cream which will quickly start to simmer. Add the cheddar and the Parmesan and stir until the cheeses have started to melt.

Step 3

Transfer the pan to the oven and bake for 15 minutes until the whole thing is bubbly and the top is browned (a last minute under the broiler is a-ok for a little extra browning – just watch it carefully).