โญ Soy Milk + Lemon Juice (Best Dairy-Free Option)
1 cup soy milk + 1 tablespoon lemon juice (let sit 5-10 minutes)Soy milk acidified with lemon juice replicates the acidic environment of buttermilk, which is necessary for proper gluten formation and yeast activation in bagel dough. This substitute is suitable for those avoiding dairy.
Allow the mixture to sit for 5-10 minutes to curdle before use. Because soy milk has a different protein and fat composition than dairy milk, expect slight variations in dough elasticity and final texture.
Bagels made with this substitute will have a slightly different mouthfeel and a less rich flavor, but will maintain acceptable chewiness and crust integrity.