01 -
Place eggs in a single layer in a large saucepan and cover with cold water by 1 inch. Bring to a rolling boil over medium-high heat. Once boiling, cover and cook for 9 and 1/2 minutes. Immediately transfer eggs to an ice bath to cool completely, about 10 minutes.
02 -
Gently peel eggs and pat dry. Slice each egg crosswise to form overall oval halves. Carefully trim a small slice off the bottom of each half to allow them to stand upright without toppling.
03 -
Scoop yolks from each egg half and place them into a mixing bowl. Set the whites aside on a platter, cut-side-up.
04 -
In a medium skillet over medium heat, melt butter. Add sliced garlic and sauté for 30 seconds, then add spinach. Cook until spinach is fully wilted and any liquid evaporates, about 5 minutes. Remove from heat and let cool to room temperature.
05 -
Transfer spinach mixture to a food processor. Add cooked egg yolks, mayonnaise, mustard, potato flakes, smoked paprika, lemon juice, salt, and black pepper. Blend until very smooth and vibrant green. Taste and adjust seasoning as necessary.
06 -
Refrigerate the filling for at least 30 minutes until firm and cool. This allows the mixture to thicken and become easier to pipe.
07 -
Spoon the chilled filling into a piping bag fitted with a large star tip. Pipe tall swirls onto each egg white half, bobbing the tip slightly to create a tree-like texture.
08 -
Garnish each piped tree with small red Fresno chili pieces as ornaments, and top with a yellow bell pepper star. Grate parmesan over each tree to create a snowy effect.
09 -
Arrange the Deviled Egg Christmas Trees on a serving platter. If not serving immediately, refrigerate uncovered for up to 4 hours. Add grated parmesan just before serving for best texture.