Set your Instant Pot to saute on high setting and melt the butter. When butter is melted and hot, add onions and celery and saute for about 5 minutes.
Press cancel and add tomatoes, broth, sugar, salt and basil. Not the yogurt yet! With the tomatoes, broth, sugar and basil added to the sauteed onions and celery, secure the lid, close the.........More