Choose your favorite seafood for this decadent fondue. For a last-minute appetizer, we like to make it using a 12-ounce bag of frozen cooked, peeled and deveined shrimp, thawed quickly in water. If you use a cast-iron Dutch oven, it will retain enough heat to keep the fondue warm during eating. Or you can use a fondue pot to keep it warm.
In a small Dutch oven or saucepan, melt 2 Tbsp.of the butter over medium heat. Add sweet pepper, paprika, and Old Bay. Cook and stir 2 to 3 minutes or until pepper is softened.
Stir in flour; cook and stir 1 minute. Add milk. Cook over medium-high heat, stirring often, until thickened and bubbly. Add cream. Bring to a simmer. In a medium bowl combine cheese and cornstarch. Slowly stir into pot over very low heat. Remove from heat when cheese is almost melted. Add seafood and butter.
If desired, transfer to a fondue pot over low heat. Serve with cubed baguette.