Easiest No-Boil Brie Mac and Cheese

Ingredients

• kosher salt and black pepper
• 1/4 teaspoon ground mustard
• 1/2 teaspoon onion powder
• 1 1/4 cups shredded Havarti cheese
• 1 1/4 cups shredded cheddar cheese
• 3 cups whole milk
• 1/2 cup sour cream
• 6 ounces brie, rind removed, and cubed
• 2 tablespoons salted butter, at room temperature
• 1/2 teaspoon garlic powder
• 1 cup shredded fontina cheese
• 1/4 teaspoon cayenne
• 1/4 teaspoon paprika
• 1 1/2 cups crushed Ritz Crackers
• 1 pound dry shells or elbow macaroni