In a medium mixing bowl, combine and whisk the dry ingredients: flour, sugar, baking powder, and sea salt.
In a separate smaller mixing bowl, weigh out your discard, and add in the rest of you wet ingredients, yogurt, oil, milk and water. Whisk well.
Add the wet ingredients into the bowl of the dry ingredients and mix to combine. Add blueberries and gently incorporate.
Pour evenly into prepared liners (about 3/4 full) and sprinkle with optional crumb topping.
Bake for 16-20 minutes until internal temperature is about 200, or baked through.
Remove to wire rack or cool and enjoy!