TO SERVE
Preheat oven to 350°. In a large bowl, combine all ingredients except baguette. Mix until fully combined and season with salt and pepper.
Transfer to a baking dish and smooth top with a spatula. Top with more shredded white cheddar.
Bake until bubbly and slightly golden, 30 minutes. If you’d like the dip to develop a more golden top, broil on high for 2 minutes.
Serve with baguette on the side, for dipping.