Base Ingredients:

• 6 large eggs
• 3 tablespoons mayonnaise
• 1 teaspoon Dijon mustard
• 1 teaspoon apple cider vinegar or lemon juice
• ¼ teaspoon fine salt, plus more to taste
• Freshly ground black pepper
• Optional: ⅛ teaspoon garlic powder or a dash of hot sauce

Additional Filling Ingredients:

• 2 tablespoons shredded sharp cheddar
• 1 tablespoon Buffalo or hot sauce
• 1 tablespoon chopped fresh dill
• 2 tablespoons mashed avocado with lime
• 1½ tablespoons cooked chorizo or taco-seasoned ground meat (or soy chorizo)
• 1 tablespoon finely chopped red onion
• 1 tablespoon crushed tortilla chips + cilantro
• 2 slices bacon, crisped and crumbled
• 1 tablespoon chopped dates
• 1 teaspoon chopped toasted pecans
• Fresh thyme leaves
• 2 roasted cherry tomato halves
• 1 small cube fresh mozzarella
• Shredded romaine or basil ribbons
• Drizzle of balsamic glaze
• 2 tablespoons finely shredded provolone or mozzarella
• 1 tablespoon chopped deli ham or salami
• 1 tablespoon sliced banana peppers
• Chopped cucumber + dried oregano
• 2 tablespoons corn kernels
• 1 tablespoon crumbled cotija or feta
• Pinch chili powder, cilantro, and lime zest
• Drizzle of hot honey (optional)