Combine flour, sugar, baking powder, salt, and nutmeg.
Mix eggs, fireweed juice, vegetable oil, and vanilla. Gradually mix the dry ingredients into the wet ingredients. Use a spatula to gently fold in the blueberries.
Cover this mixture with a towel to allow the batter to thicken for 15 minutes. While the batter is thickening preheat your oven to 425° F.
Spray muffin tin with non-stick cooking spray or line pan with muffin liners. After your batter has thickened fill the wells of your muffin tin to the top.
Bake for 6 - 8 minutes at 425° to produce a dome shape atop the muffins, then change the oven temp to 350° while still baking for another 20 - 25 minutes. Let the muffins cool in the muffin pan.