Preparation:
Step 1: Make the dough
Combine the water and active starter in a large mixing bowl. Stir until the starter has dissolved. Using a spatula or your hands, stir in the whole wheat flour until it’s fully incorporated. Fold the remaining flour and the salt in until all of the flour is hydrated. Cover the bowl with a dough cover and let the dough rest for 1 hour.
Step 2: Strengthen the dough and let it rise
The dough should look smoother and feel less tacky after the rest period. Knead the dough inside the mixing bowl for 5 to 10 minutes or until the dough is smooth and extensible. Transfer the dough to your clean, lightly-oiled proofing box. Let the dough rise for 3 to 4 hours or until your dough looks bubbly, well risen, and feels airy.
Step 3: pre-shape the dough rounds
Turn the dough out on a clean, lightly floured surface. Using your bench knife, divide the dough into four equal portions. Working with one portion of dough at a time, shape the dough by tucking the edges under and rounding it into a tight, smooth topped ball. Repeat with the remaining portions.
Step 4: overnight cold proof
Place the shaped dough back into your proofing box nestled next to each other to give them support and allow them to rise. Place the covered proofing box in the refrigerator for an overnight cold proof.
Step 5: prepare for baking
Take your proofing box out of the refrigerator and let your dough come to room temperature. Preheat your oven to 500F with the top rack 6 inches away from the heat source and position the other rack on the lowest position with the Challenger Bread Pan bottom on top. Prepare your toppings.
Step 6: shape and top your pizzas
Place one portion of dough on a lightly oiled work surface. Starting from the center, flatten and spread the dough out with your fingertips until you form a 8.5 by 11-inch rectangle, leaving a 1-inch border. Make sure to de-gas the center but not the edges of the dough. Transfer the dough on top of a piece of pre cut parchment paper.
Brush the edges of the dough with garlic oil. To top your pizza, spread a thin layer of sauce onto the dough. Spread an even layer of cheese over the sauce and place your desired toppings on top.
Step 7: bake
With the dough on the parchment, carefully slide the assembled pizza on a pizza peel or overturned baking sheet. Take the Challenger Bread Pan out of the oven and gently slide the pizza inside.
Bake the pizza on the bottom rack for 4 minutes. Turn the broiler on, place the Challenger Bread Pan with the pizza on the top rack. Broil the pizza for 4 to 5 minutes or until the cheese looks bubbly and the crust is browned to your liking. Transfer the pizza onto a wire rack.
Set the oven to 500F once more and wait until the oven comes up to temperature before proceeding. Repeat with the remaining dough portions.
Step 8: enjoy and store
Pizza is best enjoyed freshly baked. Store any leftover slices wrapped in aluminum foil in the refrigerator for up to 3 days. To reheat, broil the pizza on high for 2 minutes.