Dill zucchini fritters

Name: Dill zucchini fritters
Ingredients: 1-2 large zucchinis (about 1.5 cups, grated); 1/2 cup dried onion flakes (using dry onions is key here. I find zucchini is wet enough as is, even with all the squeezing-out); 1 tsp garlic powder or 2 fresh garlic cloves (minced); 1 tablespoon nutritional yeast; 1 tablespoon Tamari-style soy sauce; fresh dill (diced, to taste); 1 tablespoon olive oil; 2 tablespoons arrowroot powder/ potato starch; vegan sour cream (optional); 1 garlic clove (optional); a sprig of dill (optional)