Yes! You can make these with sourdough discard by eliminating the baking soda and adding 2 to 3 teaspoons of instant yeast. Mix the dough in one day and let rise for about 1 to 1.5 hours depending on the temperature of your kitchen, shape the English muffins, place on a cornmeal dusted tray, cover them with plastic wrap loosely, and let rise for about 30 to 45 minutes until they are nice and puffy.