Wash four pickling cucumbers under cold water. Cut pickles into spears or slices.
To mason jars add 2-3 sprigs of fresh dill, 1-2 whole garlic cloves, and a few slices of sweet onion. Add in the cucumber spears or sliced cucumber and pack tightly.
In a medium saucepan combine 3 cups white vinegar, 1 Tbsp sugar, 1 Tbsp mixed pickling spice and a few sprigs of fresh dill. Bring to a boil over high heat then remove from heat and let cool for 10-15 minutes.
Pour the brine mixture into the jars and cover tightly. Place in the refrigerator and let sit for 24 hours before consuming.