The Secret Ingredient That Made Grandma’s Coffee So Unforgettable

3 tablespoons of ground coffee
1 whole egg (including the shell)
3 tablespoons of water (for mixing)
3 cups of water (for brewing)
1 cup of cold water
Instructions:
Prepare the mixture
Crack the egg into a bowl, including the shell. Add the coffee grounds and a small amount of water. Mix everything together until it forms a thick, slightly lumpy paste.
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