Sift the flour, sugar, baking soda, baking powder and salt through a mine mesh sieve into a large bowl. This will help your pancakes from getting lumpy. Add in the lemon zest and poppy seeds and stir. Set aside.
Melt the butter in the microwave in 20 second increments until fully melted. Set the butter aside to cool. Separate the egg whites from the egg yolks. Place the egg whites in a large bowl as this will be where everything gets incorporated together. Whisk the eggs whites until they are fluffy on top. Whisk the buttermilk into the fluffed egg whites.
Whisk the yolks in their separate bowl until combined. Add in the sugar and stir to incorporate. Slowly add the melted butter and lemon juice into the egg yolk mixture. Make sure it has cooled or you will end up with scrambled eggs. Whisk the egg yolk mixture into the egg white mixture.
Slowly add in the flour mixture to the wet mixture. Fold the mixture in until no clumps are present. Do not over mix. Place in the refrigerator for 10 minutes. Remove and fold in the blueberries.
Brush a griddle set on 350° heat with a thin layer of melted butter. With a large spoon, spoon a cookie sized amount of batter onto the griddle. To keep them fluffy do not press down on them. Sit back and let them rise and fluff up to perfection. When bubbles start forming in the middle you can flip them.
When the pancakes are done place them on a plate and top with the lemon honey yogurt. Eat and enjoy your brunch!