Easy Restaurant-Style Blender Salsa

tomatoes, including juice (I used these whole, peeled plum tomatoes)

small yellow onion, peeled and roughly chopped

or 2 jalepeno peppers, de-stemmed and roughly chopped (I prefer 2; remove seeds to greatly reduce heat level)

garlic, peeled and finely chopped

ground cumin, or to taste

salt, or to taste (remember some brands of tomatoes and chips are much saltier than others)

to 1 teaspoon granulated sugar, optional and to taste (balances the heat and tomato acidity; start with less and add more if necessary; careful not to over-sweeten)

or 2 handfuls cilantro leaves, discard stems (I prefer 2)

about 3 tablespoons lime juice

about 3/4 cup corn, optional

about 3/4 cup canned black beans, drained and rinsed, optional

corn chips, for serving