3 tablespoons plus 1/4 cup unsalted butter
2 cloves garlic, minced
1/2 teaspoon red pepper flakes
4 cups ciabatta cubes (about 6 ounces of ciabatta bread, cubed)
1 small onion, halved
6 cups whole milk
4 ounces bacon (3-4 strips), cut into 1/2-inch pieces
2 Fuji apples, peeled, cored, cubed
2 tablespoons apple cider vinegar
4 ounces sopressatta
4 ounces cooked ham, shredded or chopped
1 pound conchiglie pasta
1/3 cup all purpose flour
4 ounces aged cheddar (1 cup grated)
6 ounces whole milk mozzarella (1 1/2 cup grated)
4 ounces smoked gouda (1 cup grated)
4 ounces havarti (1 cup grated)