This isn't from a 'mix', but they are instant, no canning involved - well instant, but I'd suggest letting them cool!
Bread & Butter Pickles
2 cups light brown sugar
2 cups cider vinegar
1/4 cup kosher salt
1 tablespoon mustard seeds
1/2 teaspoon turmeric
10 whole cloves
10 allspice berries
1 3/4 pounds Kirby cucumbers -- sliced crosswise 1/4 inch thick (about 6 cups) or whatever kind you prefer
2 medium yellow onions -- thinly sliced
In a large saucepan, combine the brown sugar, vinegar, salt, mustard seeds, turmeric, cloves and allspice and bring to a boil, stirring to dissolve the sugar and salt.
Add the cucumbers and onions and simmer over moderate heat, stirring a few times, until the cucumbers darken, about 5 minutes.
Remove from the heat. Let cool, then refrigerate until chilled, about 1 hour.
MAKES ABOUT 6 CUPS