Strawberry Leek Pizza on Kefir Einkorn Crust

Ingredients

• 2 1/2 cups einkorn flour, plus more for flouring surface area and fingers
• 2 tablespoons olive oil
• 2 teaspoons salt
• 1 packet dry instant yeast (or 2 1/4 teaspoons)
• 1/2 cup plain kefir
• 1/4 to 1/2 cup warm water (i.e., not hot to the touch but warm enough to activate the yeast)
• Olive oil, for brushing
• 1 or 2 leeks
• Coconut oil
• About a dozen strawberries, chopped
• Large slices of high-quality mozzarella
• Salt and pepper
• Balsamic vinegar, to finish after the pizza comes out of the oven