Prepare a baking sheet by lining it with wax paper or parchment paper. If using a silicone sheet, you might not need the paper, but it is still useful.
Put the almond butter and vegan butter into the bowl of your stand mixer. Or use a large bowl and your hand electric mixer.
Beat together until smooth and creamy.
Add 2 cups of the Swerve slowly, while mixing on low speed.
Mix in the peppermint and vanilla extracts.
If using just one color of food coloring, add that and mix in. If you plan to make more than one color, skip this step for now.
Add remaining Swerve slowly while mixing on low speed. Continue adding Swerve until the dough resembles play-dough. It should be very stiff and not sticky.
For multiple colors, divide dough into smaller bowls. Add the food coloring to each and mix until well-incorporated.
Roll dough into teaspoon-sized portions using your palms to create a smooth ball. Place each on your baking sheet.
Dip the tines of a fork into powdered Swerve and gently press down on each mint.
If desired, add more decorative sugar crystals or other decor to the mints.
Allow the mints to dry at room temperature for at least 3 hours.
To store until ready to serve, place in an airtight container and store in the refrigerator. Use single layers with a sheet of wax or parchment paper between layers.