Allow eggs and half-and-half to reach room temperature before mixing to ensure even incorporation and prevent lumpy batter that can result in dense cupcakes.

Simmer one cup of root beer on the stove for 5-7 minutes to concentrate its flavor before adding to batter, creating a more pronounced root beer taste than using it straight from the bottle.

Pat maraschino cherries completely dry with paper towels and place them in cups after filling halfway with batter to prevent them from sinking to the bottom during baking.

Use equal parts salted butter and powdered sugar, then add root beer soda one teaspoon at a time until you achieve spreadable consistency that won't slide off the cupcakes.

Replace half the vegetable oil with melted salted butter to add richness and depth that complements the root beer flavor better than oil alone.