This is the basic low FODMAP Yellow Cake recipe you have been looking for! Perfect for birthday cakes or anytime you need a basic recipe - to make into rounds, a rectangular snack cake or even cupcakes!
Low FODMAP Serving Size Info: either two 8-inch or 9-inch (20 cm or 23 cm) cake layers; a 13 by 9-inch (33 cm by 23 cm) pan; or 24 cupcakes. Serving size depends on which frosting or buttercream you use. As a starting point we recommend cutting round cakes into 14 servings, the rectangular cake into 24 servings and eating only 1 cupcake at a time.
Beat the butter in a large bowl, with an electric mixer on medium-high speed, until creamy, for 2 to 3 minutes. Add the granulated sugar gradually and beat until very light and fluffy, for about 3 minutes, scraping down the bowl once or twice. Beat in the vanilla. Beat in the eggs, one at a time, scraping down after each addition, and allowing each egg to be absorbed before continuing. Add the flour mixture in four additions, alternating with the milk.
Begin and end with the flour mixture and beat briefly until smooth. Divide the batter equally among the prepared round pans. (see Tips below if using the suggested alternative pans).