Porter's Steakhouse, 827 Broad St., will offer the next in its series of Cocktail Labs from 4 to 5 p.m. Saturday, April 5. In this hands-on class, the house mixologist will go through the steps of how to prepare multiple drinks, complete with a bit of their history. Participants will be able to taste multiple concoctions and compare their own creations. Cost is $55, plus tax and gratuity, which includes a snack from the chef and a discount on dinner for those who stay after class to dine. Space is limited. Call 423-266-4121 for reservations.