In a large bowl combine the eggs with the brown sugar and icing sugar. Use a hand mixer to blend them to foamy, about 2 minutes. Gently stir through the kefir and vanilla, and orange blossom water, if using.
Don't worry about the flours not having all the same measurements or weight. Each type of flour has a different weight.
To achieve 1 1/2 eggs, take 3 eggs and whisk them in a measuring cup. Once fully blended, measure out half for this recipe. Save the rest in a sealed container for scrambled eggs the next day.
The convection oven circulates the air evenly over and around the pancake, giving it the browning it needs to not look naked. If you don't have this setting on your oven, just brush with melted butter and turn the broiler on for just a moment or so. Totally optional of course.
Re-heat leftovers in an oiled skillet or toaster oven. Or even the toaster, but the berries might scorch.
You can also freeze leftovers for up to three months.
This recipe can be doubled easily and will fit into a 13x18 sheet pan. This will feed up to 6 people.