1 lb patty pan, crookneck or zucchini squash-or enough to fill four small 4 oz jars- (pick squash no bigger in diameter than the width of the jars you will be using).
1 small onion or shallot, sliced thin
1 tablespoon salt
1 garlic clove, sliced – per jar
1 T fresh dill -per jar
1 tsp mustard seeds– per jar
1/2 tsp whole peppercorns– per jar
1 small red chile, sliced thin
1/2 cup white vinegar
3/4 cup water
1/4 cup rice vinegar (or sub more white vinegar)
1/4 cup sugar
2 teaspoons salt
Using a mandolin, carefully slice the summer squash. If using a knife, make sure to cut pieces as evenly as possible, to the same thickness. Thicker slices will result in a crunchier pickle. Paper-thin will be softer.
Slice the small onion, or shallot. Toss both onion and squash in a bowl with a tablespoon of salt and let drain in a colander or strainer over a bowl for 2 hours or overnight. Pat dry.
Make the pickling solution: In a small pot, bring white wine vinegar, water, rice wine vinegar, sugar, and salt to a boil, stirring until sugar dissolves, let cool slightly.
In each 4 oz jar, add about a tablespoon of fresh dill, a teaspoon of mustard seeds, 1/2 tsp peppercorns, a few slices of chile pepper and sliced garlic cloves. You could also try experimenting with other seeds like whole coriander, cumin, or fennel seed. Then layer the squash and onion in jars, and top off with the pickling liquid.
Press down on the squash. Seal, and let cool in the fridge.
These will keep for up to 2-3 weeks.