Compare the ingredients in two recipes and list out the differences.
Input: Recipe A: 2 cups of flour, 1/2 cup of  butter, 1 teaspoon of baking powder 
Recipe B: 1 cup of flour, 1 teaspoon of baking soda
The main difference between the two recipes is that Recipe A calls for 2 tablespoons of butter and 1/2 teaspoon of baking powder, while Recipe B calls for 1 tablespoon of baking soda and 1 teaspoon of baking powder. The combination of ingredients in each recipe create two different end products – one fluffy and light and the other slightly denser and more tart.
Recipe A and Recipe B are very similar, with the only difference being the replacement of butter with baking powder in Recipe B.