Maillard reaction (browning) is much much faster in alcaline environment, which you'll get by adding the baking soda. Also cells will degrade and you'll end up with a paste. Then add 6 carrots to the pot, 3 celery stalks, and 1 large potato; all ingredients should be finely chopped. Recipe To Blend Soup Without A Hand Blender Take a large pot and put it on high heat; add 2 tbsp of virgin oil, 1 tbsp garlic, 1 tbsp ginger, and 1 large red onion. How to Make White Onion Puree: 6 Steps (with Pictures) - wikiHow I know, a blender doesn't cost that much, but I'm really tight on my budget right now and was wondering, is it possible to … 14 votes, 15 comments. If you want carmelized onion paste, blend afterwards. To speed up the process and get a paste at the same time you can add baking soda to the onions. Make sure that the onion is peeled and finely chopped.