Combine yeast, sugar, and warm water in a bowl. Leave for 10 minutes.
Whisk together the flour, chili flakes, salt, and cayenne pepper in a bowl.
Add the yeast mixture, olive oil, and pimiento puree into the dry ingredients. Stir well.
Knead the dough on a floured surface.
Leave the dough to rise for an hour in a lightly oiled bowl.
Stretch the dough into a crust.
Season chicken breast slices with cajun spice and salt.
Top your pizza.
Bake for 25 minutes at 400F.