In a bowl, put the flour, the salt, the sugar, and dig a hole. Put the yeast in the middle, being careful it doesn't touch the salt. Add the eggs and the milk, and start to knead at speed 2 for 4 minutes.
Then, while kneading, add the softened butter little by little. Once you add all the butter, keep kneading for 10 minutes. Put in the fridge for 90 minutes.
Once the dough has swollen, add the sugar pearls, and knead quickly to mix. Make balls 3.5 ounces weight.
Grease and heat your waffle maker. Put a ball of dough on each side, and close it with pressure.