Outdoor grilling can be pretty awesome, but what happens when you want to stay indoors because the temperatures are too high outside or you have no other options because you live in an apartment? Well, the Ninja Foodi Smart XL 6-in-1 could very well be the answer to that question, especially now that it’s nearly 40 percent off at Amazon, available for a neat $170. This super versatile appliance will be a fantastic addition to any kitchen. It can grill, air fry, roast, bake, broil, and dehydrate food. At this point, if you add anything else, it’s just for bragging points. What it boils down to …