Fresh and dry yeast are very different in terms of quantity and usage. For this recipe, I only suggest using instant dry yeast for the best result. You can substitute with 0.6 oz of fresh yeast, melted in warm water with sugar before adding it to the other ingredients, but I cannot guarantee the same results. You can also use the same amount of active dry yeast instead of instant dry yeast. The only difference is that you need to bloom the active dry yeast in warm water with sugar for about 10 minutes before adding it to the other ingredients.