Place milk and butter in a small pot and warm gently over low heat. You just need to melt the butter and bring the mixture up to about 104 °F / 40 °C, which is the perfect temperature for waking up the yeast in the next step.
Be careful not to overheat—keep it under 113 °F / 45 °C. If it does get too warm, don’t panic: you can let it hang out at room temp to cool or place the pot in ice water to cool off more quickly.
When the milk mixture is at the proper temperature, add egg and whisk to combine.
Pour the milk mixture into the well you created in the dry mix. Use a whisk to combine the ingredients and make batter.
Allow this mixture to sit at room temp or warmer to allow the yeast to bloom. You can bloom the yeast for as little as ten minutes or up to two hours. The longer you let it go, the more rich, yeasty flavor you’ll develop and the more air pockets your waffles will have.
Liège Waffles
Ingredients
3Tbgranulated sugar
2¼tspactive dry yeast
⅓Cof warm water, 105F
⅓Cof warm milk (preferably full fat), 105F
4Cunbleached all-purpose flour
1tspkosher salt
6largeeggs, room temperature
1½tsppure vanilla extract
1lbunsalted butter, (4 sticks), melted and cooled slightly, plus more for brushing
2CBelgian pearl sugar
Instructions
Step 1
In a small bowl, whisk the granulated sugar and yeast into the warm water and milk, and let stand until foamy, about 5 to 10 minutes.
Put the flour and salt together in a large mixing bowl; whisk to combine (alternatively this entire process can be prepared using a stand mixer with the paddle attachment. Follow the same guidelines that follow).
Make a well in the center of the bowl and add the yeast mixture. Using a hand mixer fitted with the beaters, mix on medium until shaggy, about 1 minute.
Add the eggs one at a time, mixing for 20 seconds between each.
Combine the vanilla extract with the melted butter. While the mixer is running on low, gradually add the melted butter mixture until smooth (the batter will be thick and very sticky).
Cover the bowl with plastic wrap and allow to rise in a warm place until doubled in size, about 1 hour to 2 hours (batter can be prepared to this point and then refrigerated overnight. Bring to room temperature before continuing with step 7).
Step 2
After the batter has rested, stir in the pearl sugar. Cover again and let rest for 15 minutes before cooking.
Gently stir the batter to deflate. Preheat the waffle maker to a medium-high setting.
Scoop a cup of batter onto the center of the bottom waffle plate and spread to about 1-inch from the edge of the plate. Close the waffle maker and turn clockwise to flip.
Open the second waffle plate and add a cup of batter onto the center of that plate, close and turn clockwise to flip.
When the waffles are ready, carefully open the waffle maker and remove baked waffle. Then turn and open the second waffle plate to remove the second waffle. Repeat with remaining batter.