The filters on the right on the Recipe search page under Filter by (or under the Filter menu on a phone) have in Recipe types the drink categories Beverages/drinks (no alcohol) and Cocktails (alcohol). By selecting either of those filters you will then just see those recipes. If you aren't familiar with filters, take a look at the Tutorial #3, accessed by clicking the green Need Help? button at bottom right (not available on phone). Or this Help page.