Sift the flour and sugar into a bowl. Add the almonds. Beat the egg whites until stiff and then mix into the dry ingredients, fold in the butter, lemon juice and zest.
Pour the batter into 6 muffin cups. Put the blueberries on top. Bake at 180 degrees C for 15-20 minutes. Let it rest for 5 minutes, then you can take it out.
The original recipe stated 125 g of sugar, I only took 90 g, it was still sweet.
Best of all: The leftover egg yolks can be used for my recipe with basil mayonnaise.