a digital scale; a pizza stone ; a wooden (not metal) pizza peel
For the dough: Place each ingredient into the bowl of a stand mixer in the order listed. Install the dough hook attachment and mix on low until the dough comes together, forming a ball and pulling away from the sides of the bowl. Increase the mixer speed to medium and knead for 5 minutes.
Lightly flour the countertops, then round the dough into a smooth ball by folding the edges of the round in toward the center several times and rolling between your hands on the counter. Lightly oil a bowl and place the dough in the bowl. Cover with plastic wrap and refrigerate for 18 to 24 hours.
"Punch down" the dough by turning it out onto a clean countertop and shaping it into a rough rectangle, using your knuckles to work out as many of the large gas bubbles as possible. Then tightly roll the dough into a log 12 to 15 inches long. Cut this into thirds. Shape each third into a disk, then shape the disks into smooth balls. You may want to moisten the counter with water to up the surface tension a bit so that the ball tightens up instead of sliding across the counter.
Cover each ball with a clean kitchen towel and set aside for 30 minutes at room temperature.
At this point, you can also transfer the dough to airtight plastic containers and refrigerate for up to 8 hours. Just make sure you bring the balls to room temperature 30 minutes before use.
Pizza time: Set a pizza stone on the lower rack of the oven (or the floor, if using a gas oven) and crank the heat as high as it will go, hopefully 550 degrees F. Give the oven and the stone a good 30 minutes to heat up.
For the toppings: Press a ball of dough into a 12-inch round. (Save the remaining dough balls for another use.) Smear with the jelly, then top with the fontina and bacon. Transfer to the pizza stone and bake until golden brown and melty, about 10 minutes.