These delicate cupcakes are packed with flavor and have a moist crumb. They are perfect for any spring celebration, birthday, or afternoon tea. The olive oil keeps the crumb moist and the cake a little dense, while the vinegar activates the baking powder, ensuring a fluffy texture. With three additions of lime in the olive oil, vinegar, and zest, these cupcakes are bright and spring-like in every way. They rise considerably in the pan, so don’t fill the cupcake papers more than half full.