This list is genius! I do #7 all the time!

If you have leftover wine, freeze it into cubes. These wine cubes are excellent for use in cooking, adding richness to sauces and stews.
4. Stock
Make homemade chicken, beef, or vegetable stock and freeze it in cubes. This ensures you have measured portions ready to enhance soups, risottos, and other recipes.
5. Fresh Juice
Juice from fruits such as lemons, limes, or oranges can be frozen in cubes. These frozen cubes are perfect for popping into drinks or using in cooking instead of freshly squeezed juice.
6. Tomato Paste
Often, recipes call for just a tablespoon or two of tomato paste. By freezing the paste in an ice cube tray, you can easily store it and avoid waste.
7. Pesto
Make a batch of pesto and freeze it in ice cube trays. These frozen portions can be used later as a spread, in pasta, or to flavor other dishes.
8. Eggs
Crack eggs into the compartments of the ice cube tray and freeze them. These frozen eggs can later be thawed for use in baking or cooking.
9. Buttermilk 

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