01 -
Melt butter in a large Dutch Oven over medium heat. Add the chopped onion and cook until softened and lightly browned.
02 -
Sprinkle the flour over the onion and whisk it with the butter mixture. Cook for 2 minutes to remove the raw starchy flavor.
03 -
Gradually whisk in the half and half. Once smoothly combined, pour in the chicken broth and whisk to remove lumps and deglaze the pan.
04 -
Season with salt, white pepper, and nutmeg. Bring the mixture to a boil, then add the broccoli. Cook for about 10 minutes, until the broccoli is tender.
05 -
Stir in the Velveeta and 2 cups of the cheddar cheese until fully melted. Adjust seasoning as needed.
06 -
Top with the remaining cheddar cheese and garnish with parsley before serving.