Combine vinegar, water, sugar, salt, celery seed, and garlic in a small pot and bring to a boil, stirring until the sugar and salt dissolves. Turn off the heat and allow to cool.
Meanwhile, mix cucumbers, onion, and dill in a bowl. Stir together and pack into mason jars (I used two).
When the liquid is cool, pour over cucumber mixture in jars until completely full. Shake to combine well.
Refrigerate for at least one day- three days ideally!
