Preheat oven to 300°F. Generously butter a 12-cup muffin tin, making sure to coat all surfaces thoroughly.
Cook bacon until crispy, then drain on paper towels and crumble into small pieces. Set aside.
In a blender or food processor, combine eggs, cottage cheese, heavy cream, salt, and pepper. Blend for 60 seconds until completely smooth and frothy.
Divide the crumbled bacon evenly among the muffin cups. Top with grated cheddar cheese and chopped chives.
Pour the egg mixture evenly over the bacon and cheese, filling each cup about 3/4 full.
Place the muffin tin inside a larger baking dish. Fill the baking dish with hot water until it reaches halfway up the sides of the muffin tin.
Carefully transfer to the oven and bake for 22-25 minutes, until the egg bites are set and lightly golden on top.
Remove from oven and let cool for 2-3 minutes before gently removing from the muffin tin. Serve warm.
Notes
Storage: Keep refrigerated for up to 1 week in airtight containers. Reheat in microwave for 20-30 seconds or in 250°F oven for 5 minutes. Freeze for up to 3 months.