In a large bowl or the bowl of a food processor, mix together flour, instant yeast, salt, sugar and baking powder. Stir or pulse to combine.
Pour oil into the bottom of a measuring cup. Fill the rest of the cup with WARM water. Start with around a cup of warm water, but you may need more depending on a number of factors like humidity and your flour. Stir it into your dry mixture, OR if using a food processor, with the motor running, pour the oil/water mixture in a stream through the feed tube at the top.
After a few seconds(food processor) or minutes (stirring by hand), the dough will start to clump together. You may need more water. Keep adding until it combines into a doughy, shaggy ball. Don't overmix.
If making it in a bowl, cover it with a cloth or plastic wrap. If using a food processor, transfer it to a bowl (some people like to grease this bowl but it's up to you) and cover it with a cloth or plastic wrap. Set it in a warm place to rise for 20 minutes or so.
When it's done rising, sprinkle a little more flour over it and your hands in order to be able to handle it. You should be able to stretch it onto an oiled pan now (using more flour as needed) or shape it into whatever shape you'd like, for whatever you're making).
Notes
Note 1. Always use warm water when working with yeast - not hot because you'll kill the yeast, and not cold because it won't activate and rise.