Final answer:
To make one dozen cookies, you will need 6 tablespoons of butter, 3/4 teaspoon of almond extract, and 5/8 cup of peanuts.
Step-by-step explanation:
To adjust the peanut butter cookie recipe to make one dozen cookies, we need to calculate the proportion of the ingredients.
Since the original recipe makes four dozen cookies, we can divide the quantity of each ingredient by 4 to get the amount needed for one dozen cookies.
For butter, 1 1/2 cups divided by 4 is 3/8 cup, or 6 tablespoons. For almond extract, 3 teaspoons divided by 4 is 3/4 teaspoon. And for peanuts, 2 1/2 cups divided by 4 is 5/8 cup.
Therefore, to make one dozen cookies, you will need 6 tablespoons of butter, 3/4 teaspoon of almond extract, and 5/8 cup of peanuts.