Start by preheating your oven to 325°F then lining your baking sheets with parchment paper.
In your mixing bowl add your 300g einkorn flour, 1 Tbsp baking powder, ½ tsp salt, and ¼ tsp cardamom.
Next, add the cold 75g butter. The mixture should become crumbly.
Now, mix in the 85g honey, 125g milk, and 1 tsp vanilla extract extract until it is combined into a dough.
Using a stiff spatula, scrape out the dough onto a silicone mat greased with butter.
Coat the palms of your hands with a little butter as well.
Press the dough down flat and place the blueberries in the center. Form the dough around the 200g blueberries and knead gently. If you are working with fresh blueberries, they will pop, this is ok, just work the dough enough so that they are mixed throughout.
Form the dough into a ball (about a 10-inch circle) and using a pastry scraper, cut it into 8 wedges.
Place four scones onto a baking sheet, leaving at least a 1-inch space between them.
You can place 2 baking trays in the oven, side by side, on the middle rack. Bake them for 16-20 minutes, or until the outside is golden.
Once they are done, pull them out and let them cool while you make the glaze.