Bisquick Peanut Butter Cookies - seriously the BEST peanut butter cookies! Only 4 simple ingredients - peanut butter, sweetened condensed milk, Bisquick, vanilla. These cookies are so soft and delicious. You can top cookies with a chocolate kiss immediately after taking out of the oven for Peanut Butter Blossoms. You might want to double the recipe. These cookies are always gone in a flash!