โญ Water with a pinch of salt (Best Nut-Free Option)
1 cup water + 1/8 teaspoon salt per 1 cup vegetable brothWater is the primary liquid component in vegetable broth, so substituting it directly preserves the moisture content essential for cupcake batter consistency. Adding a small pinch of salt replicates the mild seasoning found in broth, helping balance flavor without adding complexity.
When using this substitute, ensure the salt is evenly dissolved to avoid salty pockets. Avoid adding too much salt, as cupcakes are sensitive to salt levels which affect both flavor and yeast or leavening agent performance.
This substitution results in cupcakes that are slightly less complex in flavor but retain the expected moist texture and sweetness, making it the most neutral and safe choice.