Yogurt mixed with lemon juice (Best Option)
1/4 cup yogurt + 1 tsp lemon juice per 1/4 cup buttermilkYogurt contains lactic acid and a creamy texture similar to buttermilk, while lemon juice adds the necessary acidity to mimic buttermilk's chemical properties. This combination helps activate any baking soda and contributes to the binding and moisture of energy balls.
For best results, mix the yogurt and lemon juice and let it sit for 5 minutes before use to allow the acid to slightly curdle the yogurt, simulating buttermilk's consistency. Avoid overly thick Greek yogurt unless thinned with a little water.
Compared to buttermilk, this substitute maintains the tangy flavor and moisture balance, resulting in energy balls that are similarly tender and cohesive without any off-flavors.