The first thing to do is to heat the oven to 350 degrees Fahrenheit, which is the same as 175 degrees Celsius. Put parchment paper on the baking sheet and set it aside.
Mix the soft butter, white sugar, and brown sugar in a bowl using a hand mixer. Mix the ingredients until the mixture is light and fluffy.
Mix the mashed butternut squash into the butter and sugar mixture, then add the egg and vanilla extract. Mix the ingredients until they are well combined.
In another bowl, combine the flour, baking powder, baking soda, and salt. Mix them well until they are evenly combined.
Next, mix the dry and wet ingredients together, being careful not to mix too much until you have cookie dough.
If you want, you can put the nuts in and stir them into the mixture.
With cookie dough, shape a circle roughly. Put it on the parchment paper making sure each circle is at least one cookie's width apart.
Put in the oven that is already hot and set the timer for 12 to 15 minutes. Or try to estimate how long it will take for the edges to turn golden brown, indicating that the cookies are done.
Remove the Butternut Cookies from the oven. Let them cool for a minute or two on the baking sheet, then transfer them to a wire rack to cool for a few more minutes.
Now, savor the Butternut Cookies and enjoy the taste of these cookies that will bring to mind the season of autumn.
