Bring a large pot of salted water to boil and add the cabbage; return to boil and cook for 45 seconds. Drain cabbage and set aside.
In a medium saucepan over medium-high heat, sauté the onions, bacon and flour in the butter until the onions are softened and the bacon has rendered its fat, about 5 to 7 minutes. Reduce heat to medium; stir in milk and cream and cook for 7 to 8 minutes or until the mixture has thickened.
Remove saucepan from heat and stir in cabbage; season to taste with salt and pepper. Serve immediately.
Servings: 4 to 6