In a cozy mixing bowl, gently combine the softened butter and light corn syrup until they are smooth and well-blended.
Stir in your chosen extract, infusing the mixture with its delightful flavor.
Gradually add 2 cups of the powdered sugar, mixing thoroughly until it's completely incorporated and smooth.
Next, add an additional 1 cup of powdered sugar and continue to mix until the consistency starts to thicken.
Turn the mixture out onto a clean, lightly dusted surface and knead it by hand. Continue kneading until all the powdered sugar is absorbed, and you have a beautifully smooth, pliable dough. If your dough feels too sticky, simply knead in a little more powdered sugar, a quarter cup at a time, until it reaches the perfect non-sticky texture.
Divide your perfectly smooth dough into three equal portions.
With your food coloring, tint one portion a festive red, another a cheerful green, and leave the third portion naturally white. If any colored dough becomes a bit sticky, just knead in a tiny bit more powdered sugar.
Roll small pieces of the colored dough into ¾-inch balls, shaping them carefully.
Lightly roll each little ball in granulated sugar, ensuring it gets a nice, even coating.
Place these sugar-dusted balls on a parchment-lined baking sheet and gently flatten each one with the back of a fork to create the classic patty shape.
Allow your lovely candies to stand uncovered at room temperature for at least 24 hours to properly set and firm up.
Once set, store your delightful homemade peppermint patties in an airtight container to keep them fresh and ready to enjoy!