In a large nonreactive bowl, combine milk, buttermilk, and rennet, and stir constantly for 1 minute. Cover with plastic wrap or cheesecloth, and let stand undisturbed at room temperature (70° to 80°) for 16 to 24 hours. The longer the mixture sits, the firmer the cheese will be.
Line a large colander with cheesecloth, and place in a large bowl. Ladle curds into lined colander. Refrigerate at least 6 to 8 hours. Cheese will become firmer as more liquid drains. Creole cream cheese will keep, refrigerated, up to 2 weeks.
Recipe by Louisiana Cookin' at https://louisianacookin.com/lasagna/