Soft red velvet cut-out sandwich cookies

Red Velvet Cookies
0 Start by pre-heating your oven to 350 F and preparing 2 baking sheets with parchment paper. Set them aside.
1 Sift the dry ingredients together using a medium bowl, and set them aside.
2 Over a large bowl of a stand mixer with the paddle attachment, cream butter, and sugar for 2-3 minutes on medium speed.
3 Incorporate egg, vanilla extract, and red gel color and mix until well combined. Scrape the bottom and sides of the bowl and mix.
4 Add the dry ingredients to the wet ingredients and mix at low speed until just combined. Do not overmix.
5 Divide the dough into 2 equal dough discs. Lightly dust the rolling pin, then roll out the first disc of dough over a silicone mat to a thickness of 1/4″. You can also lightly dust your work surface to roll the dough there instead.
7 Use a 2.5" square cookie cutter and a 1.3" heart cookie cutter to cut out your cookies. Create one square-shaped cookie and another square-shaped cookie with a heart-shaped hole in the center (which will be used as the top cookie). Arrange them on the prepared baking sheets, leaving 1.5 inches of space between each.
8 Bake for 10-11 minutes, or until the bottom of your cookies turn a golden brown color. Remove from the oven and let cookies cool for a few minutes on the cookie sheet (until easy to handle), then transfer them to a wire rack to cool completely before assembling them
Cream Cheese filling
10 Over a large mixing bowl of an electric mixer, cream the butter at medium speed for 3 minutes until light and fluffy.
11 Incorporate the cream cheese and beat for an extra minute.
12 Add the sifted powdered sugar, vanilla extract, and salt to the cream cheese mixture, and mix for an additional 1-2 minutes. Do not overbeat.
13 To assemble your cookies, place the cream cheese filling in a piping bag with a 1M Wilton tip.Pipe a rose-shaped swirl onto the base cookie, beginning in the middle and going all the way to the edges of the cookie. Then, top the base cookie with the heart-shaped hole cookie.