Classic Alsatian Flammkuchen with Bacon & Onions

Dissolve the yeast in 250 ml of lukewarm water. Put the flour and soft butter into a mixing bowl, add the yeast mixture, and knead on medium speed for about 8 minutes until a smooth dough forms.

Briefly knead the dough on a floured surface, form into a ball, wrap in cling film, and let rest in the refrigerator for 1 hour. Then divide the dough into 4 equal pieces.

Preheat the grill or oven to maximum temperature.