Combine almond milk and vinegar in a large liquid measuring cup or small mixing bowl and let set for a few minutes to curdle/activate. Prepare flax egg in a separate dish and let rest 5 minutes.
To the almond milk and vinegar add flax eggs, melted butter, vanilla extract, lemon juice and zest, and agave nectar or maple syrup and whisk. Set aside.
Add dry ingredients to a large mixing bowl and whisk until well combined. Then add wet ingredients to dry and mix until well incorporated. Fold in blueberries.
*Nutrition information is a rough estimate.