Set 1 tablespoon of edamame aside for a garnish. Place the rest of the edamame, tofu, salt, garlic, oil, lemon juice[, and 1 1/2 teaspoons cumin in the bowl of a food processor and process until very smooth, about 2 minutes. Season with additional salt and pepper, plus more lemon juice, if desired. Remove to a serving bowl and garnish with reserved edamame, and some cumin.