Move oven rack to the middle position and preheat oven to 400 °F
Line muffin tin with cupcake liners or spray with cooking spray.
Place blueberries in a small bowl and set aside.
Measure the einkorn flour into a large bowl. Scoop out one Tablespoon of the flour and add it to the bowl of blueberries. Toss gently to mix.
Whisk the salt, baking powder, and brown sugar into the large bowl of flour.
In another bowl or glass measuring cup whisk together milk, eggs, cooled butter, vanilla, and almond. (I use the large measuring cup which measured the milk.)
Pour the wet ingredients into the bowl of dry ingredients and gently stir a few times, leaving some flour unmixed.
Add the blueberries to the mixture and stir a few more times, scraping the bottom of the bowl to draw up any flour from the bottom. Do not over-mix! Batter will be a bit lumpy and some spots of flour may remain - this is okay.
Spoon batter into muffin tin, filling each well 3/4 of the way. Do not fill all the way to the top. Once the batter settles in each well, you may add a little more to reach 3/4. You may have a tiny bit of batter leftover depending on if you used liners or not.
Place muffins in oven and immediately reduce oven temperature to 375 °F
Bake until lightly golden and muffins spring back to the touch, about 20-23 minutes. A toothpick inserted into the center should come out clean.
When the muffins are done, immediately transfer them to a cooling rack. Allow to cool slightly before serving. Enjoy!