In a large bowl or a stand mixer, cream together the butter, heavy whipping cream, peppermint extract, and 1 cup of powdered sugar until combined.
Scrape down the sides of the bowl and continue to add 1 cup of powdered sugar at a time until the powdered sugar is gone and the dough comes together.
Separate your dough into 4 equal sizes and place into separate bowls.
Place your food coloring into each bowl and stir until the coloring is fully combined.
Next, place a ball of dough onto a cutting board that has been dusted with powdered sugar. Separate the dough into two equal pieces. Roll the dough out using the palm of your hand into about a ½” size “rope”. Continue for all the dough.
Using a sharp knife, dough scraper or pizza cutter, cut into pieces.
Allow to harden for 12 hours, ideally overnight before enjoying!
The outside of the butter mint will harden while the inside will be soft!