Preheat oven to 350 degrees F and line your pan with parchment paper.

Melt your butter for the whoopie pies for 15 seconds in a microwave then use a hand mixer and combine with sugar. Next, add in the egg and vanilla and mix well. Combine the rest of your ingredients for the whoopie pies in the bowl and mix for 2 minutes, making sure everything is combined.

Using a small scoop or teaspoon, make the cookies into same size circular shapes. Make sure to leave at least 2 inches space because they do expand. You will either need to use two sheets or do 2-3 batches.

Bake for 10-15 minutes depending on the size making sure the edges are brown and cooked through. When they are done, let them cool completely before adding the filling.

For the filling, combine the butter and cream cheese until mixed well. Add in confectionery sugar and vanilla. Mix until filling is smooth. Last add in crushes pecans.

To make the whoopie pies, take a teaspoon or more (depending on size of cookie) and place on one side of cookie. Then grab another cookie and set it on top, creating the whoopie pie. Repeat this step for as many as you would like to make right now.