The amount of cake needed to serve 20 people can vary depending on factors such as serving size, the type of cake, and personal preferences. However, as a general guideline, you can estimate the following:
- Occasion-sized servings: If you're serving the cake at a formal event or a party where multiple desserts are available, you can estimate smaller, occasion-sized servings. In this case, a 1-inch by 2-inch slice per person is a common serving size.
For a 20-person serving size of 1-inch by 2-inch slices, you can consider a cake that yields approximately 40 square inches of cake.
- Larger servings: If you prefer larger slices or if the cake is the main dessert, you may opt for larger servings. A 2-inch by 2-inch slice per person is a generous serving size.
For a 20-person serving size of 2-inch by 2-inch slices, you can consider a cake that yields approximately 160 square inches of cake.
Cake recipes typically mention the yield or the number of servings the cake can provide. For example, if a recipe states that it yields 16 servings, you might need to adjust the recipe accordingly or consider making multiple cakes to serve 20 people.
Remember, these estimations are general guidelines, and the specific requirements may vary based on individual appetites and preferences.