Place the cooked egg halves on a large baking sheet or plate and set aside.
In a medium size bowl, mash the cooked yolks of the hard boiled eggs with a fork (or with a mixer if you want a completely smooth egg yolk mixture).
To the mashed yolks, add the mayonnaise, mustard, sugar, salt, and pepper. Continue mixing until everything is combined. Depending on the moistness of your yolks and/or your preferred deviled egg filling texture, you may want or need to add some liquid3 to thin it out.
If desired, add a few drops of red or orange food coloring to the egg yolk filling to make it orange.
When you are satisfied with the texture and color of the filling, fill each egg half with a rounded mound of filling. I prefer to do this with a pastry bag or a zip top bag with the end snipped off.
When all of the eggs are filled, add a sprinkle of paprika, a tiny piece of chive, and make indentations (if desired) with a sharp knife so the filling resembles a pumpkin. Serve immediately. Store leftovers covered tightly in the refrigerator up to 3 days.
Notes
Hard boiled eggs: my tried, true, and used-on-a-weekly-basis-in-our-house method for making hard cooked eggs is in a pressure cooker. Use whatever your preferred method is for making hard boiled eggs, or try out a new method with my Instant Pot hard boiled eggs.
Mustard: I like to use dijon or spicy mustard in my deviled eggs, but you can use any mustard you prefer. I recommend not using honey mustard since you will already be adding sugar.
Liquid: I highly recommend using dill or sweet pickle juice to thin out your deviled egg filling, but you can use any liquid you would like, including water or milk. Just keep in mind that adding milk will mean these deviled eggs are no longer dairy-free.
Nutrition Disclosure
All nutritional values are approximate and provided to the reader as a courtesy. Changing ingredients and/or quantities will alter the estimated nutritional calculations.