This recipe is made for a 13x18 half sheet pan. The number of people a half sheet cake can feed depends on how the cake is sliced and the serving size you intend to provide. Here are some rough estimates: Party Servings: If you're serving the cake at a casual event or party where there will be other desserts or food options, you can usually get around 35 to 50 servings from a half sheet cake. This assumes smaller, party-sized slices. Event Servings: For more formal events like weddings or occasions where the cake is the main dessert, larger slices are often served. In this case, you may get approximately 25 to 30 servings from a half sheet cake. If you double this recipe for a full sheet cake pan, you can expect to get approximately double the amount of servings. So, 70-100 smaller party sized servings and 50-60 larger event servings.