01 - In a large mixing bowl, whisk together flour, yeast, salt, and sugar. Add warm water and olive oil. Stir until a sticky dough forms.
02 - Knead on a floured surface or using a stand mixer with dough hook for 5–6 minutes, until smooth and elastic.
03 - Transfer dough to a lightly oiled bowl. Cover and let rise in a warm place for 1 hour or until doubled in size.
04 - Grease a 9x13 inch (23x33 cm) baking pan with olive oil. Turn dough into pan and gently stretch to fill. Let rest uncovered for 30 minutes.
05 - Preheat oven to 220°C (425°F). Use fingers to dimple the dough. Drizzle with olive oil. Top with cheddar cheese, jalapeño slices, and a sprinkle of flaky salt.
06 - Bake for 22–25 minutes or until golden brown and the cheese is bubbly. Let cool slightly before slicing.