If you have an extra handful of berries and fruit I highly recommend making yourself a sour, sweet batch of drinking vinegars. This is my recipe, I have simplified it from my original recipe written 6 years ago.
Homemade Drinking Vinegars – makes about one quart
1 cup of berries or chopped stone fruit
3 cups organic apple cider vinegar (I think a rice vinegar would work well too)
1 – 1 1/2 cups white sugar
1. In a clean quart jar add fruit and smoosh with a spoon until juice is released. Top off the jars with vinegar. Push fruit under the vinegar if it floats.
2. Cover the top with a clean cloth napkin and secure with a rubber band. Leave in a cool place for 3-4 days. (At this point you have a fruit vinegar for salad dressings)
3. Strain vinegar to remove fruit solids. Put vinegar into a sauce pan. You should have about 3 1/2 cups of liquid.
4. Add sugar and bring mix to a simmer just until the sugar melts.
5. At this point I would do a taste test. Mix 3 tablespoons with a large glass of seltzer. Is it sweet enough? If not, add more sugar and simmer until the sugar melts.
6. Pour into a jar and store in the fridge. Use as needed.
PS. A yummy cocktail recipe: In a large glass mix 3 tablespoons of strawberry drinking vinegar, shot of vodka, squeeze of lime and top with seltzer.